function Set-DeployCenterButtonStyle {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.Button]$Button,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [ValidateSet('Button','PrimaryButton','DangerButton')][string]$Role = 'Button'
    )
    $style = $Theme[$Role]
    $Button.BackColor = $style.Background
    $Button.ForeColor = $style.Foreground
    $Button.FlatStyle = [System.Windows.Forms.FlatStyle]::Flat
    $Button.UseVisualStyleBackColor = $false
    $Button.FlatAppearance.BorderSize = 1
    $Button.FlatAppearance.BorderColor = $style.Border
    $Button.FlatAppearance.MouseOverBackColor = $style.HoverBackground
    $Button.FlatAppearance.MouseDownBackColor = $style.PressedBackground
    if (-not $Button.Enabled) {
        $Button.BackColor = $style.DisabledBackground
        $Button.ForeColor = $style.DisabledForeground
    }
}

function New-DeployCenterComboBox {
    param(
        [Parameter(Mandatory=$true)][string]$Name,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [Parameter(Mandatory=$true)][AllowEmptyCollection()][string[]]$Items
    )

    $comboBox = New-Object System.Windows.Forms.ComboBox
    $comboBox.Name = $Name
    $comboBox.DropDownStyle = [System.Windows.Forms.ComboBoxStyle]::DropDownList
    $comboBox.FlatStyle = [System.Windows.Forms.FlatStyle]::Flat
    $comboBox.BackColor = $Theme.PanelAlt
    $comboBox.ForeColor = $Theme.Text
    $comboBox.Font = $Font
    $comboBox.IntegralHeight = $false
    $comboBox.MaxDropDownItems = 12
    foreach ($item in $Items) { [void]$comboBox.Items.Add((Get-DeployCenterText -Text $item)) }
    return $comboBox
}

function Set-DeployCenterComboBoxTheme {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.ComboBox]$ComboBox,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme
    )
    $ComboBox.BackColor = $Theme.PanelAlt
    $ComboBox.ForeColor = $Theme.Text
}

function New-DeployCenterPartitionProfileSelector {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.GroupBox]$Parent,
        [Parameter(Mandatory=$true)][string[]]$ProfileNames,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )

    $label = New-Object System.Windows.Forms.Label
    $label.Text = Get-DeployCenterText -Text 'Partitioning profile'
    $label.Size = New-Object System.Drawing.Size(240, 17)
    $label.ForeColor = $Theme.Text
    $label.BackColor = [System.Drawing.Color]::Transparent
    $label.Font = $Font

    $comboBox = New-DeployCenterComboBox -Name 'cmbPartitionProfile' -Theme $Theme -Font $Font -Items $ProfileNames
    $Parent.Controls.Add($label)
    $Parent.Controls.Add($comboBox)
    Set-DeployCenterPartitionProfileSelectorLayout -Label $label -ComboBox $comboBox -Width ($Parent.ClientSize.Width - 24)

    return [pscustomobject]@{ Label = $label; ComboBox = $comboBox }
}

function Set-DeployCenterPartitionProfileSelectorLayout {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.Label]$Label,
        [Parameter(Mandatory=$true)][System.Windows.Forms.ComboBox]$ComboBox,
        [Parameter(Mandatory=$true)][int]$Width
    )
    $Label.Location = New-Object System.Drawing.Point(12, 143)
    $ComboBox.Location = New-Object System.Drawing.Point(12, 161)
    $ComboBox.Size = New-Object System.Drawing.Size([Math]::Max(250, $Width), 26)
}

function New-DeployCenterDeploymentControls {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.GroupBox]$Parent,
        [Parameter(Mandatory=$true)][string[]]$ProfileNames,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )

    $diskLabel = New-Object System.Windows.Forms.Label
    $diskLabel.Text = Get-DeployCenterText -Text 'Physical disk'
    $diskLabel.Location = New-Object System.Drawing.Point(12, 20)
    $diskLabel.Size = New-Object System.Drawing.Size(220, 18)
    $diskLabel.Font = $Font
    $diskLabel.ForeColor = $Theme.Text
    $diskLabel.BackColor = [System.Drawing.Color]::Transparent

    $diskCombo = New-DeployCenterComboBox -Name 'cmbDisk' -Theme $Theme -Font $Font -Items @()
    $diskCombo.Location = New-Object System.Drawing.Point(12, 39)
    $diskCombo.Size = New-Object System.Drawing.Size([Math]::Max(250, $Parent.ClientSize.Width - 24), 26)
    $diskCombo.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right

    $systemLabel = New-Object System.Windows.Forms.Label
    $systemLabel.Text = Get-DeployCenterText -Text 'System to install'
    $systemLabel.Location = New-Object System.Drawing.Point(12, 71)
    $systemLabel.Size = New-Object System.Drawing.Size(240, 18)
    $systemLabel.Font = $Font
    $systemLabel.ForeColor = $Theme.Text
    $systemLabel.BackColor = [System.Drawing.Color]::Transparent

    $chooseSystemButton = New-Object System.Windows.Forms.Button
    $chooseSystemButton.Name = 'btnChooseWindows'
    $chooseSystemButton.Text = Get-DeployCenterText -Text 'Browse…'
    $chooseSystemButton.Size = New-Object System.Drawing.Size(132, 28)
    $chooseSystemButton.Location = New-Object System.Drawing.Point([Math]::Max(12, $Parent.ClientSize.Width - 144), 67)
    $chooseSystemButton.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Right
    Set-DeployCenterButtonStyle -Button $chooseSystemButton -Theme $Theme -Role 'Button'

    $selectedSystemLabel = New-Object System.Windows.Forms.Label
    $selectedSystemLabel.Name = 'lblSelectedWindows'
    $selectedSystemLabel.Text = Get-DeployCenterText -Text 'No system selected'
    $selectedSystemLabel.Location = New-Object System.Drawing.Point(12, 98)
    $selectedSystemLabel.Size = New-Object System.Drawing.Size([Math]::Max(250, $Parent.ClientSize.Width - 24), 22)
    $selectedSystemLabel.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right
    $selectedSystemLabel.Font = $Font
    $selectedSystemLabel.AutoEllipsis = $true
    $selectedSystemLabel.ForeColor = $Theme.Secondary
    $selectedSystemLabel.BackColor = [System.Drawing.Color]::Transparent

    $driverStatusLabel = New-Object System.Windows.Forms.Label
    $driverStatusLabel.Name = 'lblDriverStatus'
    $driverStatusLabel.Text = Get-DeployCenterText -Text 'Drivers: select a Windows edition to search for a driver pack.'
    $driverStatusLabel.Location = New-Object System.Drawing.Point(12, 119)
    $driverStatusLabel.Size = New-Object System.Drawing.Size([Math]::Max(250, $Parent.ClientSize.Width - 24), 18)
    $driverStatusLabel.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right
    $driverStatusLabel.Font = $Font
    $driverStatusLabel.AutoEllipsis = $true
    $driverStatusLabel.ForeColor = $Theme.Secondary
    $driverStatusLabel.BackColor = [System.Drawing.Color]::Transparent
    $driverToolTip = New-Object System.Windows.Forms.ToolTip
    $driverToolTip.SetToolTip($driverStatusLabel, $driverStatusLabel.Text)

    $profileSelector = New-DeployCenterPartitionProfileSelector -Parent $Parent -ProfileNames $ProfileNames -Theme $Theme -Font $Font
    $profileSelector.ComboBox.Enabled = $false

    $unattendLabel = New-Object System.Windows.Forms.Label
    $unattendLabel.Name = 'lblUnattendProfile'
    $unattendLabel.Text = Get-DeployCenterText -Text 'First-run configuration'
    $unattendLabel.Location = New-Object System.Drawing.Point(12, 194)
    $unattendLabel.Size = New-Object System.Drawing.Size(320, 17)
    $unattendLabel.Font = $Font
    $unattendLabel.ForeColor = $Theme.Text
    $unattendLabel.BackColor = [System.Drawing.Color]::Transparent

    $unattendCombo = New-DeployCenterComboBox -Name 'cmbUnattendProfile' -Theme $Theme -Font $Font `
        -Items @('Use OOBE')
    $unattendCombo.Location = New-Object System.Drawing.Point(12, 211)
    $unattendCombo.Size = New-Object System.Drawing.Size([Math]::Max(250, $Parent.ClientSize.Width - 24), 26)
    $unattendCombo.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right
    $unattendCombo.SelectedIndex = 0

    $hostLabel = New-Object System.Windows.Forms.Label
    $hostLabel.Name = 'lblHostName'
    $hostLabel.Text = Get-DeployCenterText -Text "Computer name"
    $hostLabel.Location = New-Object System.Drawing.Point(12, 244)
    $hostLabel.Size = New-Object System.Drawing.Size(220, 24)
    $hostLabel.Font = $Font
    $hostLabel.ForeColor = $Theme.Text
    $hostLabel.BackColor = [System.Drawing.Color]::Transparent

    $hostTextBox = New-Object System.Windows.Forms.TextBox
    $hostTextBox.Name = 'txtHostName'
    $hostTextBox.Location = New-Object System.Drawing.Point([Math]::Max(244, $Parent.ClientSize.Width - 202), 241)
    $hostTextBox.Size = New-Object System.Drawing.Size(190, 26)
    $hostTextBox.MaxLength = 15
    $hostTextBox.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Right
    $hostTextBox.BackColor = $Theme.PanelAlt
    $hostTextBox.ForeColor = $Theme.Text
    $hostTextBox.Font = $Font

    $hostLabel.Visible = $false
    $hostTextBox.Visible = $false
    $Parent.Controls.AddRange(@($diskLabel, $diskCombo, $systemLabel, $chooseSystemButton, $selectedSystemLabel, $driverStatusLabel, $unattendLabel, $unattendCombo, $hostLabel, $hostTextBox))
    return [pscustomobject]@{
        DiskComboBox = $diskCombo
        ChooseSystemButton = $chooseSystemButton
        SelectedSystemLabel = $selectedSystemLabel
        DriverStatusLabel = $driverStatusLabel
        DriverToolTip = $driverToolTip
        PartitionProfileLabel = $profileSelector.Label
        PartitionProfileComboBox = $profileSelector.ComboBox
        UnattendProfileLabel = $unattendLabel
        UnattendProfileComboBox = $unattendCombo
        HostNameLabel = $hostLabel
        HostNameTextBox = $hostTextBox
    }
}

function Set-DeployCenterUnattendHostNameVisibility {
    param([Parameter(Mandatory=$true)]$Controls, [Parameter(Mandatory=$true)][bool]$ShowHostName)
    $Controls.HostNameLabel.Visible = $ShowHostName
    $Controls.HostNameTextBox.Visible = $ShowHostName
}

function Set-DeployCenterUnattendProfileChoices {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.ComboBox]$ComboBox,
        [Parameter(Mandatory=$true)][AllowEmptyCollection()][object[]]$Profiles,
        [AllowNull()][string]$EditionName,
        [Parameter(Mandatory=$true)][string]$OobeChoice
    )

    $isServerEdition = -not [string]::IsNullOrWhiteSpace($EditionName) -and
        $EditionName.IndexOf('server', [StringComparison]::OrdinalIgnoreCase) -ge 0
    $target = if ($isServerEdition) { 'Server' } else { 'Workstation' }
    $choices = @($OobeChoice)
    if (-not [string]::IsNullOrWhiteSpace($EditionName)) {
        $choices += @($Profiles | Where-Object { [string]$_.Target -eq $target } | ForEach-Object { [string]$_.Name })
    }

    $previousChoice = [string]$ComboBox.SelectedItem
    $ComboBox.BeginUpdate()
    try {
        $ComboBox.Items.Clear()
        foreach ($choice in $choices) { [void]$ComboBox.Items.Add((Get-DeployCenterText -Text ([string]$choice))) }
        $selectionIndex = $ComboBox.Items.IndexOf($previousChoice)
        if ($selectionIndex -lt 0) { $selectionIndex = 0 }
        $ComboBox.SelectedIndex = $selectionIndex
    } finally {
        $ComboBox.EndUpdate()
    }
}

function Set-DeployCenterDeploymentControlsLayout {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.GroupBox]$Parent,
        [Parameter(Mandatory=$true)]$Controls
    )
    $width = [Math]::Max(250, $Parent.ClientSize.Width - 24)
    $Controls.DiskComboBox.Size = New-Object System.Drawing.Size($width, 26)
    $Controls.ChooseSystemButton.Location = New-Object System.Drawing.Point([Math]::Max(12, $Parent.ClientSize.Width - 144), 67)
    $Controls.SelectedSystemLabel.Size = New-Object System.Drawing.Size($width, 22)
    $Controls.DriverStatusLabel.Size = New-Object System.Drawing.Size($width, 18)
    Set-DeployCenterPartitionProfileSelectorLayout -Label $Controls.PartitionProfileLabel -ComboBox $Controls.PartitionProfileComboBox -Width $width
    $Controls.UnattendProfileComboBox.Size = New-Object System.Drawing.Size($width, 26)
    $Controls.HostNameTextBox.Location = New-Object System.Drawing.Point([Math]::Max(244, $Parent.ClientSize.Width - 202), 241)
    $Controls.HostNameTextBox.Size = New-Object System.Drawing.Size(190, 26)
}

function New-DeployCenterLogWindow {
    param(
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )
    $form = New-Object System.Windows.Forms.Form
    $form.Text = Get-DeployCenterText -Text 'DeployCenter log'
    $form.StartPosition = 'CenterParent'
    $form.Size = New-Object System.Drawing.Size(900, 500)
    $form.MinimumSize = New-Object System.Drawing.Size(560, 300)
    $form.ShowInTaskbar = $false
    $form.BackColor = $Theme.Background
    $form.ForeColor = $Theme.Text
    $form.Font = $Font

    $textBox = New-Object System.Windows.Forms.TextBox
    $textBox.Name = 'txtLog'
    $textBox.Location = New-Object System.Drawing.Point(12, 12)
    $textBox.Size = New-Object System.Drawing.Size(860, 440)
    $textBox.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Bottom -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right
    $textBox.Multiline = $true
    $textBox.ReadOnly = $true
    $textBox.WordWrap = $false
    $textBox.ScrollBars = [System.Windows.Forms.ScrollBars]::Both
    $textBox.BackColor = $Theme.PanelAlt
    $textBox.ForeColor = $Theme.Text
    $textBox.BorderStyle = [System.Windows.Forms.BorderStyle]::FixedSingle
    $textBox.Font = [System.Drawing.Font]::new('Consolas', [single]9, [System.Drawing.FontStyle]::Regular)
    $form.Controls.Add($textBox)

    $form.Add_FormClosing({ if ($_.CloseReason -eq [System.Windows.Forms.CloseReason]::UserClosing) { $_.Cancel = $true; $form.Hide() } }.GetNewClosure())
    return [pscustomobject]@{ Form = $form; TextBox = $textBox }
}

function Show-DeployCenterPartitionSizingDialog {
    param(
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Profile,
        [Parameter(Mandatory=$true)][double]$AvailableGB,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [System.Windows.Forms.Form]$Owner = $null,
        [System.Collections.IDictionary]$InitialValues = @{}
    )

    $inputs = @($Profile.Partitions | Where-Object { [string]$_.Size.Policy -eq 'UserInputGB' })
    $remainder = @($Profile.Partitions | Where-Object { [string]$_.Size.Policy -eq 'RemainderAfterInputs' })[0]
    if ($inputs.Count -eq 0 -or $null -eq $remainder) { return $null }

    $minimumRemainder = [double]$remainder.Size.MinimumGB
    $minimumInputs = 0.0
    foreach ($inputDefinition in $inputs) { $minimumInputs += [double]$inputDefinition.Size.MinimumGB }
    if ($AvailableGB -lt ($minimumInputs + $minimumRemainder)) {
        Show-DeployCenterMessage `
            -Message "The available space on this disk is insufficient for profile '$($Profile.Name)'." `
            -Title 'Partitioning unavailable' -Icon Warning -Owner $Owner -Theme $Theme -Font $Font
        return $null
    }

    $dialog = New-Object System.Windows.Forms.Form
    $dialog.Text = Get-DeployCenterText -Text 'Partition sizes'
    $dialog.StartPosition = if ($Owner) { 'CenterParent' } else { 'CenterScreen' }
    $dialog.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
    $dialog.ShowInTaskbar = $false
    $dialog.MinimizeBox = $false
    $dialog.MaximizeBox = $false
    $dialog.BackColor = $Theme.Background
    $dialog.ForeColor = $Theme.Text
    $dialog.Font = $Font
    $dialog.ClientSize = New-Object System.Drawing.Size(470, (152 + ($inputs.Count * 42)))

    $capacityLabel = New-Object System.Windows.Forms.Label
    $capacityLabel.Location = New-Object System.Drawing.Point(18, 16)
    $capacityLabel.Size = New-Object System.Drawing.Size(430, 34)
    $recoveryPartition = @($Profile.Partitions | Where-Object { [string]$_.Role -eq 'Recovery' }) | Select-Object -First 1
    $winreSizeMB = if ($recoveryPartition) { [int]$recoveryPartition.Size.Value } else { 1024 }
    $capacityLabel.Text = (Get-DeployCenterText -Text 'Estimated capacity after EFI, MSR and WinRE reservations: {0:N1} GB.`r`nConfigured WinRE size: {1} MB.') -f $AvailableGB, $winreSizeMB
    $capacityLabel.ForeColor = $Theme.Text
    $capacityLabel.BackColor = [System.Drawing.Color]::Transparent
    $capacityLabel.Font = $Font
    $dialog.Controls.Add($capacityLabel)

    $inputControls = [System.Collections.Generic.List[object]]::new()
    for ($i = 0; $i -lt $inputs.Count; $i++) {
        $definition = $inputs[$i]
        $rowY = 60 + ($i * 42)

        $label = New-Object System.Windows.Forms.Label
        $label.Location = New-Object System.Drawing.Point(18, ($rowY + 4))
        $label.Size = New-Object System.Drawing.Size(250, 26)
        $label.Text = Get-DeployCenterText -Text ([string]$definition.Size.Label)
        $label.ForeColor = $Theme.Text
        $label.BackColor = [System.Drawing.Color]::Transparent
        $label.Font = $Font
        $dialog.Controls.Add($label)

        $otherMinimums = 0.0
        for ($j = 0; $j -lt $inputs.Count; $j++) {
            if ($j -ne $i) { $otherMinimums += [double]$inputs[$j].Size.MinimumGB }
        }
        $maximum = [math]::Floor($AvailableGB - $minimumRemainder - $otherMinimums)
        $minimum = [double]$definition.Size.MinimumGB
        $numeric = New-Object System.Windows.Forms.NumericUpDown
        $numeric.Location = New-Object System.Drawing.Point(292, $rowY)
        $numeric.Size = New-Object System.Drawing.Size(150, 28)
        $numeric.Minimum = [decimal]$minimum
        $numeric.Maximum = [decimal]$maximum
        $numeric.DecimalPlaces = 0
        $numeric.Increment = 1
        $numeric.BackColor = $Theme.PanelAlt
        $numeric.ForeColor = $Theme.Text
        $numeric.Font = $Font

        $initialValue = $null
        if ($InitialValues.Contains([string]$definition.Role)) { $initialValue = [double]$InitialValues[[string]$definition.Role] }
        if ($null -eq $initialValue) {
            $initialValue = [math]::Floor($AvailableGB * ([double]$definition.Size.DefaultPercent / 100))
        }
        $initialValue = [math]::Max($minimum, [math]::Min($maximum, $initialValue))
        $numeric.Value = [decimal]$initialValue
        $inputControls.Add([pscustomobject]@{ Role = [string]$definition.Role; Control = $numeric })
        $dialog.Controls.Add($numeric)
    }

    $remainderLabel = New-Object System.Windows.Forms.Label
    $remainderLabel.Location = New-Object System.Drawing.Point(18, (62 + ($inputs.Count * 42)))
    $remainderLabel.Size = New-Object System.Drawing.Size(430, 26)
    $remainderLabel.ForeColor = $Theme.Secondary
    $remainderLabel.BackColor = [System.Drawing.Color]::Transparent
    $remainderLabel.Font = $Font
    $dialog.Controls.Add($remainderLabel)

    $buttonPanel = New-Object System.Windows.Forms.Panel
    $buttonPanel.Dock = [System.Windows.Forms.DockStyle]::Bottom
    $buttonPanel.Height = 58
    $buttonPanel.BackColor = $Theme.PanelAlt
    $dialog.Controls.Add($buttonPanel)

    $cancelButton = New-Object System.Windows.Forms.Button
    $cancelButton.Text = Get-DeployCenterText -Text 'Cancel'
    $cancelButton.Location = New-Object System.Drawing.Point(258, 10)
    $cancelButton.Size = New-Object System.Drawing.Size(92, 36)
    $cancelButton.Font = $Font
    $cancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
    Set-DeployCenterButtonStyle -Button $cancelButton -Theme $Theme -Role 'Button'
    $buttonPanel.Controls.Add($cancelButton)

    $validateButton = New-Object System.Windows.Forms.Button
    $validateButton.Text = Get-DeployCenterText -Text 'Select'
    $validateButton.Location = New-Object System.Drawing.Point(358, 10)
    $validateButton.Size = New-Object System.Drawing.Size(92, 36)
    $validateButton.Font = $Font
    Set-DeployCenterButtonStyle -Button $validateButton -Theme $Theme -Role 'PrimaryButton'
    $buttonPanel.Controls.Add($validateButton)

    $dialog.Tag = [pscustomobject]@{ InputControls = $inputControls; AvailableGB = $AvailableGB }
    $updateRemainder = {
        $sum = 0.0
        foreach ($inputControl in $dialog.Tag.InputControls) {
            $inputValue = [double]$inputControl.Control.Value
            $typedValue = 0.0
            if ([double]::TryParse([string]$inputControl.Control.Text, [ref]$typedValue)) { $inputValue = $typedValue }
            $sum += $inputValue
        }
        $remainingGB = $dialog.Tag.AvailableGB - $sum
        $remainderDrive = [string]$remainder.DriveLetter
        $remainderName = if ($remainderDrive) { "$remainderDrive`:" } else { [string]$remainder.Name }
        $remainderLabel.Text = (Get-DeployCenterText -Text '{0}: {1:N1} GB (remaining space)') -f $remainderName, $remainingGB
        $remainderLabel.ForeColor = if ($remainingGB -lt $minimumRemainder) { $Theme.Danger } else { $Theme.Secondary }
        $validateButton.Enabled = ($remainingGB -ge $minimumRemainder)
    }.GetNewClosure()
    foreach ($inputControl in $inputControls) {
        $inputControl.Control.Add_ValueChanged($updateRemainder)
        $inputControl.Control.Add_TextChanged($updateRemainder)
    }
    & $updateRemainder

    $validateButton.Add_Click({
        $inputValues = @{}
        foreach ($inputControl in $dialog.Tag.InputControls) { $inputValues[$inputControl.Role] = [double]$inputControl.Control.Value }
        $sum = 0.0
        foreach ($value in $inputValues.Values) { $sum += [double]$value }
        $dialog.Tag = [pscustomobject]@{
            Inputs = $inputValues
            RemainderRole = [string]$remainder.Role
            RemainderGB = [math]::Round(($dialog.Tag.AvailableGB - $sum), 1)
            AvailableGB = $dialog.Tag.AvailableGB
        }
        $dialog.DialogResult = [System.Windows.Forms.DialogResult]::OK
        $dialog.Close()
    })
    $dialog.AcceptButton = $validateButton
    $dialog.CancelButton = $cancelButton

    if ($Owner) { $result = $dialog.ShowDialog($Owner) } else { $result = $dialog.ShowDialog() }
    $selection = if ($result -eq [System.Windows.Forms.DialogResult]::OK) { $dialog.Tag } else { $null }
    $dialog.Dispose()
    return $selection
}

function Show-DeployCenterMessage {
    param(
        [Parameter(Mandatory=$true)][string]$Message,
        [Parameter(Mandatory=$true)][string]$Title,
        [ValidateSet('Information','Warning','Error')][string]$Icon = 'Information',
        [System.Windows.Forms.Form]$Owner = $null,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )

    $messageForm = New-Object System.Windows.Forms.Form
    $messageForm.Text = Get-DeployCenterText -Text $Title
    $messageForm.StartPosition = if ($Owner) { 'CenterParent' } else { 'CenterScreen' }
    $messageForm.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
    $messageForm.ShowInTaskbar = $false
    $messageForm.MinimizeBox = $false
    $messageForm.MaximizeBox = $false
    $messageForm.BackColor = $Theme.Background
    $messageForm.ForeColor = $Theme.Text
    $messageForm.Font = $Font

    $messageWidth = 390
    $textSize = [System.Windows.Forms.TextRenderer]::MeasureText(
        $Message,
        $Font,
        (New-Object System.Drawing.Size($messageWidth, 0)),
        [System.Windows.Forms.TextFormatFlags]::WordBreak
    )
    $messageHeight = [Math]::Max(42, $textSize.Height + 8)
    $messageForm.ClientSize = New-Object System.Drawing.Size(470, ($messageHeight + 94))

    $iconLabel = New-Object System.Windows.Forms.Label
    $iconLabel.Location = New-Object System.Drawing.Point(18, 24)
    $iconLabel.Size = New-Object System.Drawing.Size(34, 34)
    $iconLabel.Text = if ($Icon -eq 'Information') { 'i' } else { '!' }
    $iconLabel.TextAlign = [System.Drawing.ContentAlignment]::MiddleCenter
    $iconLabel.Font = New-Object System.Drawing.Font('Segoe UI', [single]16, [System.Drawing.FontStyle]::Bold)
    $iconLabel.ForeColor = if ($Icon -eq 'Error') { $Theme.Danger } else { $Theme.Accent }
    $iconLabel.BackColor = [System.Drawing.Color]::Transparent
    $messageForm.Controls.Add($iconLabel)

    $messageLabel = New-Object System.Windows.Forms.Label
    $messageLabel.Location = New-Object System.Drawing.Point(64, 20)
    $messageLabel.Size = New-Object System.Drawing.Size($messageWidth, $messageHeight)
    $messageLabel.Text = Get-DeployCenterText -Text $Message
    $messageLabel.ForeColor = $Theme.Text
    $messageLabel.BackColor = [System.Drawing.Color]::Transparent
    $messageLabel.TextAlign = [System.Drawing.ContentAlignment]::MiddleLeft
    $messageLabel.Font = $Font
    $messageForm.Controls.Add($messageLabel)

    $buttonPanel = New-Object System.Windows.Forms.Panel
    $buttonPanel.Dock = [System.Windows.Forms.DockStyle]::Bottom
    $buttonPanel.Height = 58
    $buttonPanel.BackColor = $Theme.PanelAlt
    $messageForm.Controls.Add($buttonPanel)

    $okButton = New-Object System.Windows.Forms.Button
    $okButton.Text = Get-DeployCenterText -Text 'OK'
    $okButton.Location = New-Object System.Drawing.Point(362, 10)
    $okButton.Size = New-Object System.Drawing.Size(92, 36)
    $okButton.Font = $Font
    $okButton.Cursor = [System.Windows.Forms.Cursors]::Hand
    $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
    Set-DeployCenterButtonStyle -Button $okButton -Theme $Theme -Role 'PrimaryButton'
    $buttonPanel.Controls.Add($okButton)
    $messageForm.AcceptButton = $okButton
    $messageForm.CancelButton = $okButton

    if ($Owner) {
        [void]$messageForm.ShowDialog($Owner)
    } else {
        [void]$messageForm.ShowDialog()
    }
    $messageForm.Dispose()
}

function Show-DeployCenterDeploymentComplete {
    param(
        [Parameter(Mandatory=$true)][string]$Message,
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$Owner,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [bool]$RestartByDefault = $true
    )

    $dialog = New-Object System.Windows.Forms.Form
    $dialog.Text = Get-DeployCenterText -Text 'Deployment complete'
    $dialog.StartPosition = 'CenterParent'
    $dialog.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
    $dialog.ShowInTaskbar = $false
    $dialog.MinimizeBox = $false
    $dialog.MaximizeBox = $false
    $dialog.BackColor = $Theme.Background
    $dialog.ForeColor = $Theme.Text
    $dialog.Font = $Font

    $messageWidth = 390
    $textSize = [System.Windows.Forms.TextRenderer]::MeasureText(
        $Message, $Font, (New-Object System.Drawing.Size($messageWidth, 0)),
        [System.Windows.Forms.TextFormatFlags]::WordBreak
    )
    $messageHeight = [Math]::Max(42, $textSize.Height + 8)
    $dialog.ClientSize = New-Object System.Drawing.Size(470, ($messageHeight + 126))

    $iconLabel = New-Object System.Windows.Forms.Label
    $iconLabel.Location = New-Object System.Drawing.Point(18, 24)
    $iconLabel.Size = New-Object System.Drawing.Size(34, 34)
    $iconLabel.Text = 'i'
    $iconLabel.TextAlign = [System.Drawing.ContentAlignment]::MiddleCenter
    $iconLabel.Font = New-Object System.Drawing.Font('Segoe UI', [single]16, [System.Drawing.FontStyle]::Bold)
    $iconLabel.ForeColor = $Theme.Accent
    $iconLabel.BackColor = [System.Drawing.Color]::Transparent
    $dialog.Controls.Add($iconLabel)

    $messageLabel = New-Object System.Windows.Forms.Label
    $messageLabel.Location = New-Object System.Drawing.Point(64, 20)
    $messageLabel.Size = New-Object System.Drawing.Size($messageWidth, $messageHeight)
    $messageLabel.Text = Get-DeployCenterText -Text $Message
    $messageLabel.ForeColor = $Theme.Text
    $messageLabel.BackColor = [System.Drawing.Color]::Transparent
    $messageLabel.TextAlign = [System.Drawing.ContentAlignment]::MiddleLeft
    $messageLabel.Font = $Font
    $dialog.Controls.Add($messageLabel)

    $restartCheckBox = New-Object System.Windows.Forms.CheckBox
    $restartCheckBox.Text = Get-DeployCenterText -Text 'Restart this computer when closing'
    $restartCheckBox.Location = New-Object System.Drawing.Point(64, ($messageHeight + 34))
    $restartCheckBox.Size = New-Object System.Drawing.Size(380, 26)
    $restartCheckBox.Checked = $RestartByDefault
    $restartCheckBox.ForeColor = $Theme.Text
    $restartCheckBox.BackColor = [System.Drawing.Color]::Transparent
    $restartCheckBox.Font = $Font
    $dialog.Controls.Add($restartCheckBox)

    $buttonPanel = New-Object System.Windows.Forms.Panel
    $buttonPanel.Dock = [System.Windows.Forms.DockStyle]::Bottom
    $buttonPanel.Height = 58
    $buttonPanel.BackColor = $Theme.PanelAlt
    $dialog.Controls.Add($buttonPanel)

    $okButton = New-Object System.Windows.Forms.Button
    $okButton.Text = Get-DeployCenterText -Text 'OK'
    $okButton.Location = New-Object System.Drawing.Point(362, 10)
    $okButton.Size = New-Object System.Drawing.Size(92, 36)
    $okButton.Font = $Font
    $okButton.Cursor = [System.Windows.Forms.Cursors]::Hand
    $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
    Set-DeployCenterButtonStyle -Button $okButton -Theme $Theme -Role 'PrimaryButton'
    $buttonPanel.Controls.Add($okButton)
    $dialog.AcceptButton = $okButton
    $dialog.CancelButton = $okButton

    try {
        $result = $dialog.ShowDialog($Owner)
        return ($result -eq [System.Windows.Forms.DialogResult]::OK -and $restartCheckBox.Checked)
    } finally {
        $dialog.Dispose()
    }
}

function Show-DeployCenterConfirmation {
    param(
        [Parameter(Mandatory=$true)][string]$Title,
        [Parameter(Mandatory=$true)][string]$Message,
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$Owner,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )

    $dialog = New-Object System.Windows.Forms.Form
    $dialog.Text = Get-DeployCenterText -Text $Title
    $dialog.StartPosition = 'CenterParent'
    $dialog.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
    $dialog.ShowInTaskbar = $false
    $dialog.MinimizeBox = $false
    $dialog.MaximizeBox = $false
    $dialog.BackColor = $Theme.Background
    $dialog.ForeColor = $Theme.Text
    $dialog.Font = $Font

    $dialogWidth = 570
    $dialogMargin = 18
    $labelTop = 18
    $labelWidth = $dialogWidth - (2 * $dialogMargin)
    $labelHeight = [Math]::Max(120, [System.Windows.Forms.TextRenderer]::MeasureText(
        $Message,
        $Font,
        (New-Object System.Drawing.Size($labelWidth, 0)),
        [System.Windows.Forms.TextFormatFlags]::WordBreak
    ).Height + 12)
    $buttonTop = $labelTop + $labelHeight + 18
    $dialog.ClientSize = New-Object System.Drawing.Size($dialogWidth, ($buttonTop + 36 + 16))

    $label = New-Object System.Windows.Forms.Label
    $label.Location = New-Object System.Drawing.Point($dialogMargin, $labelTop)
    $label.Size = New-Object System.Drawing.Size($labelWidth, $labelHeight)
    $label.Text = Get-DeployCenterText -Text $Message
    $label.ForeColor = $Theme.Text
    $label.BackColor = [System.Drawing.Color]::Transparent
    $label.Font = $Font
    $dialog.Controls.Add($label)

    $cancel = New-Object System.Windows.Forms.Button
    $cancel.Text = Get-DeployCenterText -Text 'Cancel'
    $cancelWidth = 100
    $confirmWidth = 134
    $buttonGap = 10
    $confirmLeft = $dialogWidth - $dialogMargin - $confirmWidth
    $cancel.Location = New-Object System.Drawing.Point(($confirmLeft - $buttonGap - $cancelWidth), $buttonTop)
    $cancel.Size = New-Object System.Drawing.Size($cancelWidth, 36)
    $cancel.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
    Set-DeployCenterButtonStyle -Button $cancel -Theme $Theme -Role 'Button'
    $dialog.Controls.Add($cancel)

    $confirm = New-Object System.Windows.Forms.Button
    $confirm.Text = Get-DeployCenterText -Text 'Erase and install'
    $confirm.Location = New-Object System.Drawing.Point($confirmLeft, $buttonTop)
    $confirm.Size = New-Object System.Drawing.Size($confirmWidth, 36)
    $confirm.DialogResult = [System.Windows.Forms.DialogResult]::Yes
    Set-DeployCenterButtonStyle -Button $confirm -Theme $Theme -Role 'DangerButton'
    $dialog.Controls.Add($confirm)
    $dialog.CancelButton = $cancel
    $dialog.AcceptButton = $confirm

    return ($dialog.ShowDialog($Owner) -eq [System.Windows.Forms.DialogResult]::Yes)
}

function Add-DeployCenterApplicationHeader {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$TargetForm,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$TitleFont,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$SubtitleFont,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$ThemeFont,
        [AllowNull()][System.Drawing.Image]$LogoImage,
        [string[]]$ThemeNames = @(),
        [string]$SelectedTheme = '',
        [bool]$ShowThemeSelector = $true,
        [bool]$ThemeSelectorEnabled = $true,
        [bool]$CloneLogo = $false
    )

    $logo = $null
    $titleX = 30
    if ($null -ne $LogoImage) {
        $logo = New-Object System.Windows.Forms.PictureBox
        $logo.Location = New-Object System.Drawing.Point(30, 20)
        $logo.Size = New-Object System.Drawing.Size(64, 64)
        $logo.SizeMode = [System.Windows.Forms.PictureBoxSizeMode]::Zoom
        $logo.BackColor = [System.Drawing.Color]::Transparent
        $logo.Image = if ($CloneLogo) { $LogoImage.Clone() } else { $LogoImage }
        $TargetForm.Controls.Add($logo)
        $titleX = 110
    }

    $title = New-Label -Text 'DeployCenter' -X $titleX -Y 17 -Width 600 -Height 42 `
        -Theme $Theme -Font $TitleFont -Color $Theme.Text
    $subtitle = New-Label -Text (Get-DeployCenterText -Text 'Windows deployment environment') `
        -X ($titleX + 4) -Y 61 -Width 650 -Height 24 -Theme $Theme -Font $SubtitleFont -Color $Theme.Secondary
    $TargetForm.Controls.Add($title)
    $TargetForm.Controls.Add($subtitle)

    $themeSelector = $null
    if ($ShowThemeSelector) {
        $themeSelector = New-Object System.Windows.Forms.ComboBox
        $themeSelector.DropDownStyle = [System.Windows.Forms.ComboBoxStyle]::DropDownList
        $themeSelector.DrawMode = [System.Windows.Forms.DrawMode]::OwnerDrawFixed
        $themeSelector.ItemHeight = 24
        $themeSelector.Font = $ThemeFont
        $themeSelector.Width = 190
        $themeSelector.Height = 32
        $themeSelector.Location = New-Object System.Drawing.Point([Math]::Max(30, ($TargetForm.ClientSize.Width - 220)), 29)
        $themeSelector.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Right
        foreach ($themeName in $ThemeNames) { [void]$themeSelector.Items.Add($themeName) }
        $themeSelector.SelectedItem = $SelectedTheme
        $themeSelector.BackColor = $Theme.Panel
        $themeSelector.ForeColor = $Theme.Text
        $themeSelector.Enabled = $ThemeSelectorEnabled
        $themeSelector.Add_DrawItem({
            param($sender, $e)
            $itemText = if ($e.Index -lt 0) { [string]$sender.Text } else { [string]$sender.Items[$e.Index] }
            $isSelected = (($e.State -band [System.Windows.Forms.DrawItemState]::Selected) -ne 0)
            $backgroundColor = if ($isSelected) { $script:Theme.Accent } else { $script:Theme.Panel }
            $foregroundColor = if ($isSelected) { [System.Drawing.Color]::White } else { $script:Theme.Text }
            $backgroundBrush = New-Object System.Drawing.SolidBrush($backgroundColor)
            try { $e.Graphics.FillRectangle($backgroundBrush, $e.Bounds) }
            finally { $backgroundBrush.Dispose() }
            if (-not [string]::IsNullOrEmpty($itemText)) {
                $textBounds = $e.Bounds
                $textBounds.X += 4
                [System.Windows.Forms.TextRenderer]::DrawText(
                    $e.Graphics, $itemText, $sender.Font, $textBounds, $foregroundColor,
                    ([System.Windows.Forms.TextFormatFlags]::Left -bor [System.Windows.Forms.TextFormatFlags]::VerticalCenter -bor [System.Windows.Forms.TextFormatFlags]::EndEllipsis)
                )
            }
            $e.DrawFocusRectangle()
        })
        $TargetForm.Controls.Add($themeSelector)
        $themeSelector.BringToFront()
    }

    return [pscustomobject]@{ Logo = $logo; Title = $title; Subtitle = $subtitle; ThemeSelector = $themeSelector }
}

function New-DeployCenterDeploymentProgress {
    param(
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$FooterFont,
        [Parameter(Mandatory=$true)][AllowEmptyCollection()][string[]]$Steps,
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$Owner,
        [AllowNull()][System.Drawing.Image]$LogoImage,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$TitleFont,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$SubtitleFont,
        [bool]$Windowed = $false,
        [AllowNull()][string]$IPv4,
        [AllowNull()][string]$VncPassword
    )

    $form = New-Object System.Windows.Forms.Form
    $form.Text = Get-DeployCenterText -Text 'Windows deployment'
    $form.StartPosition = if ($Windowed) { 'CenterParent' } else { 'Manual' }
    $form.FormBorderStyle = if ($Windowed) { [System.Windows.Forms.FormBorderStyle]::FixedDialog } else { [System.Windows.Forms.FormBorderStyle]::None }
    $form.ControlBox = $false
    $form.ShowInTaskbar = $false
    $screen = [System.Windows.Forms.Screen]::FromControl($Owner)
    $workingArea = $screen.WorkingArea
    if ($Windowed) {
        $clientWidth = [Math]::Min(($Owner.ClientSize.Width - 40), ($workingArea.Width - 48))
        $clientHeight = [Math]::Min(($Owner.ClientSize.Height - 28), ($workingArea.Height - 28))
        $clientWidth = [Math]::Max(420, $clientWidth)
        $clientHeight = [Math]::Max(360, $clientHeight)
    } else {
        $clientWidth = $screen.Bounds.Width
        $clientHeight = $screen.Bounds.Height
        $form.Bounds = $screen.Bounds
    }
    $form.ClientSize = New-Object System.Drawing.Size($clientWidth, $clientHeight)
    $form.BackColor = $Theme.Background
    $form.ForeColor = $Theme.Text
    $form.Font = $Font

    [void](Add-DeployCenterApplicationHeader -TargetForm $form -Theme $Theme `
        -TitleFont $TitleFont -SubtitleFont $SubtitleFont -ThemeFont $Font `
        -LogoImage $LogoImage -ShowThemeSelector:$false -CloneLogo:$true)

    $heading = New-Object System.Windows.Forms.Label
    $heading.Location = New-Object System.Drawing.Point(30, 95)
    $heading.Size = New-Object System.Drawing.Size(($clientWidth - 60), 22)
    $heading.Text = Get-DeployCenterText -Text 'Deployment steps'
    $heading.ForeColor = $Theme.Text
    $heading.BackColor = [System.Drawing.Color]::Transparent
    $heading.Font = $Font
    $form.Controls.Add($heading)

    $list = New-Object System.Windows.Forms.Panel
    $list.Location = New-Object System.Drawing.Point(12, 120)
    $footerHeight = 26
    $list.Size = New-Object System.Drawing.Size(($clientWidth - 24), ($clientHeight - 120 - $footerHeight - 12))
    $list.Anchor = [System.Windows.Forms.AnchorStyles]::Top -bor [System.Windows.Forms.AnchorStyles]::Left -bor [System.Windows.Forms.AnchorStyles]::Right -bor [System.Windows.Forms.AnchorStyles]::Bottom
    $list.AutoScroll = $true
    $list.BackColor = $Theme.Background
    $form.Controls.Add($list)

    $rows = @()
    $rowTop = 0
    foreach ($step in $Steps) {
        $rowPanel = New-Object System.Windows.Forms.Panel
        $rowPanel.Location = New-Object System.Drawing.Point(0, $rowTop)
        $listWidth = $list.ClientSize.Width
        $rowPanel.Size = New-Object System.Drawing.Size(($listWidth - 8), 20)
        $rowPanel.BackColor = $Theme.Background

        $name = New-Object System.Windows.Forms.Label
        $name.Location = New-Object System.Drawing.Point(6, 0)
        $name.Size = New-Object System.Drawing.Size([Math]::Max(140, ($listWidth - 380)), 20)
        $stepLabel = if ([string]$step -eq 'Applying Windows to ') {
            Get-DeployCenterText -Text 'Applying Windows to target partition…'
        } else {
            Get-DeployCenterText -Text $step
        }
        $name.Text = $stepLabel
        $name.ForeColor = $Theme.Text
        $name.BackColor = [System.Drawing.Color]::Transparent
        $name.Font = $Font
        $name.AutoEllipsis = $true
        $rowPanel.Controls.Add($name)

        $state = New-Object System.Windows.Forms.Label
        $state.Location = New-Object System.Drawing.Point(($listWidth - 158), 0)
        $state.Size = New-Object System.Drawing.Size(145, 20)
        $state.TextAlign = [System.Drawing.ContentAlignment]::MiddleRight
        $state.ForeColor = $Theme.Secondary
        $state.BackColor = [System.Drawing.Color]::Transparent
        $state.Font = $Font
        $state.Text = Get-DeployCenterText -Text 'Upcoming'
        $rowPanel.Controls.Add($state)

        $bar = New-Object System.Windows.Forms.ProgressBar
        $bar.Location = New-Object System.Drawing.Point(($listWidth - 350), 4)
        $bar.Size = New-Object System.Drawing.Size(180, 12)
        $bar.Style = [System.Windows.Forms.ProgressBarStyle]::Continuous
        $bar.Visible = $false
        $rowPanel.Controls.Add($bar)
        $list.Controls.Add($rowPanel)
        $rows += [pscustomobject]@{ Key = [string]$step; Name = $name; Panel = $rowPanel; State = $state; Bar = $bar; Started = $null; Complete = $false }
        $rowTop += 20
    }

    $completionPanel = New-Object System.Windows.Forms.Panel
    $completionPanel.Dock = [System.Windows.Forms.DockStyle]::Bottom
    $completionPanel.Height = 88
    $completionPanel.BackColor = $Theme.PanelAlt
    $completionPanel.Visible = $false

    $completionLabel = New-Object System.Windows.Forms.Label
    $completionLabel.Location = New-Object System.Drawing.Point(12, 5)
    $completionLabel.Size = New-Object System.Drawing.Size(($clientWidth - 40), 34)
    $completionLabel.ForeColor = $Theme.Text
    $completionLabel.BackColor = [System.Drawing.Color]::Transparent
    $completionLabel.Font = $Font
    $completionLabel.AutoEllipsis = $true
    $completionPanel.Controls.Add($completionLabel)

    $restartCheckBox = New-Object System.Windows.Forms.CheckBox
    $restartCheckBox.Text = Get-DeployCenterText -Text 'Restart this computer when closing'
    $restartCheckBox.Location = New-Object System.Drawing.Point(12, 48)
    $restartCheckBox.Size = New-Object System.Drawing.Size(($clientWidth - 160), 28)
    $restartCheckBox.ForeColor = $Theme.Text
    $restartCheckBox.BackColor = [System.Drawing.Color]::Transparent
    $restartCheckBox.Font = $Font
    $completionPanel.Controls.Add($restartCheckBox)

    $okButton = New-Object System.Windows.Forms.Button
    $okButton.Text = Get-DeployCenterText -Text 'OK'
    $okButton.Location = New-Object System.Drawing.Point(($clientWidth - 110), 45)
    $okButton.Size = New-Object System.Drawing.Size(92, 36)
    $okButton.Font = $Font
    $okButton.Cursor = [System.Windows.Forms.Cursors]::Hand
    $okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
    Set-DeployCenterButtonStyle -Button $okButton -Theme $Theme -Role 'PrimaryButton'
    $completionPanel.Controls.Add($okButton)
    $form.Controls.Add($completionPanel)
    $completionPanel.BringToFront()
    Add-SessionFooter -TargetForm $form -Theme $Theme -Font $FooterFont `
        -IPv4 $IPv4 -VncPassword $VncPassword -ShowPassword $true
    $form.AcceptButton = $okButton
    $form.CancelButton = $okButton

    $progressState = [pscustomobject]@{
        Form = $form
        Theme = $Theme
        ListPanel = $list
        HeaderHeight = 120
        FooterHeight = $footerHeight
        Steps = $rows
        CurrentIndex = -1
        CompletionPanel = $completionPanel
        CompletionLabel = $completionLabel
        RestartCheckBox = $restartCheckBox
        OkButton = $okButton
        ElapsedTimer = New-Object System.Windows.Forms.Timer
        UpdateAction = $null
        Action = $null
    }

    $inProgressText = Get-DeployCenterText -Text 'In progress…'
    $completedText = Get-DeployCenterText -Text 'Completed'
    $formatElapsedTime = {
        param([TimeSpan]$Duration)
        if ($Duration.TotalHours -ge 1) { return $Duration.ToString('h\:mm\:ss') }
        return $Duration.ToString('m\:ss')
    }.GetNewClosure()
    $progressState.ElapsedTimer.Interval = 500
    $progressState.ElapsedTimer.Add_Tick({
        if ($progressState.CurrentIndex -lt 0) { return }
        $active = $progressState.Steps[$progressState.CurrentIndex]
        if (-not $active.Started -or -not $active.Started.IsRunning) { return }
        $elapsed = & $formatElapsedTime $active.Started.Elapsed
        if ($active.Bar.Visible) {
            $active.State.Text = '{0} % · {1}' -f $active.Bar.Value, $elapsed
        } else {
            $active.State.Text = '{0} {1}' -f $inProgressText, $elapsed
        }
    }.GetNewClosure())
    $form.Add_Shown({ $progressState.ElapsedTimer.Start() }.GetNewClosure())
    $form.Add_FormClosed({
        $progressState.ElapsedTimer.Stop()
        $progressState.ElapsedTimer.Dispose()
    }.GetNewClosure())
    $progressState.UpdateAction = {
        param($Message, $Percent, $DisplayMessage)

        if ($null -ne $Message) {
            $nextIndex = -1
            for ($index = 0; $index -lt $progressState.Steps.Count; $index++) {
                if ([string]$Message -and ([string]$Message).StartsWith([string]$progressState.Steps[$index].Key, [StringComparison]::Ordinal)) {
                    $nextIndex = $index
                    break
                }
            }
            if ($nextIndex -ge 0 -and $nextIndex -ne $progressState.CurrentIndex) {
                if ($progressState.CurrentIndex -ge 0) {
                    $previous = $progressState.Steps[$progressState.CurrentIndex]
                    if ($previous.Started) {
                        $previous.Started.Stop()
                        $elapsed = if ($previous.Started.Elapsed.TotalHours -ge 1) { $previous.Started.Elapsed.ToString('h\:mm\:ss') } else { $previous.Started.Elapsed.ToString('m\:ss') }
                        $previous.State.Text = '{0}: {1}' -f $completedText, $elapsed
                        $previous.State.ForeColor = $progressState.Theme.Success
                        $previous.Bar.Visible = $false
                        $previous.Complete = $true
                    }
                }
                $progressState.CurrentIndex = $nextIndex
                $current = $progressState.Steps[$nextIndex]
                $current.Started = [System.Diagnostics.Stopwatch]::StartNew()
                if (-not [string]::IsNullOrWhiteSpace([string]$DisplayMessage)) { $current.Name.Text = [string]$DisplayMessage }
                $current.State.Text = $inProgressText
                $current.State.ForeColor = $progressState.Theme.Success
            }
        }

        if ($null -ne $Percent -and $progressState.CurrentIndex -ge 0) {
            $active = $progressState.Steps[$progressState.CurrentIndex]
            $active.Bar.Visible = $true
            $active.Bar.Value = [int][Math]::Max(0, [Math]::Min(100, [int]$Percent))
            $active.State.Text = '{0} % · {1}' -f $active.Bar.Value, (& $formatElapsedTime $active.Started.Elapsed)
        }
        [System.Windows.Forms.Application]::DoEvents()
    }.GetNewClosure()

    return $progressState
}

function Show-DeployCenterDeploymentCompletion {
    param(
        [Parameter(Mandatory=$true)]$Progress,
        [Parameter(Mandatory=$true)][string]$Message,
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$Owner,
        [bool]$RestartByDefault = $true
    )

    $Progress.CompletionLabel.Text = Get-DeployCenterText -Text $Message
    $Progress.RestartCheckBox.Checked = $RestartByDefault
    $Progress.CompletionPanel.Visible = $true
    $Progress.ListPanel.Size = New-Object System.Drawing.Size($Progress.ListPanel.Width, ($Progress.Form.ClientSize.Height - $Progress.HeaderHeight - $Progress.CompletionPanel.Height - $Progress.FooterHeight - 12))
    $Progress.CompletionPanel.BringToFront()
    [System.Windows.Forms.Application]::DoEvents()

    # Reopen the same progress window modally so its completed timings remain visible until confirmation.
    $Progress.Form.Hide()
    [void]$Progress.Form.ShowDialog($Owner)
    $restart = [bool]$Progress.RestartCheckBox.Checked
    if (-not $Progress.Form.IsDisposed) { $Progress.Form.Close() }
    return $restart
}

function Set-DeployCenterDeploymentProgress {
    param(
        [Parameter(Mandatory=$true)]$Progress,
        [AllowNull()][string]$Message,
        [AllowNull()][object]$Percent
    )

    if ($null -ne $Message) {
        $nextIndex = -1
        for ($index = 0; $index -lt $Progress.Steps.Count; $index++) {
            if ($Message.StartsWith([string]$Progress.Steps[$index].Key, [StringComparison]::Ordinal)) { $nextIndex = $index; break }
        }
        if ($nextIndex -ge 0 -and $nextIndex -ne $Progress.CurrentIndex) {
            if ($Progress.CurrentIndex -ge 0) {
                $previous = $Progress.Steps[$Progress.CurrentIndex]
                if ($previous.Started) {
                    $previous.Started.Stop()
                    $previous.State.Text = '{0}: {1}' -f (Get-DeployCenterText -Text 'Completed'), (Format-DeployCenterElapsedTime -Duration $previous.Started.Elapsed)
                    $previous.State.ForeColor = $Progress.Theme.Success
                    $previous.Bar.Visible = $false
                    $previous.Complete = $true
                }
            }
            $Progress.CurrentIndex = $nextIndex
            $current = $Progress.Steps[$nextIndex]
            $current.Started = [System.Diagnostics.Stopwatch]::StartNew()
            $current.State.Text = Get-DeployCenterText -Text 'In progress…'
            $current.State.ForeColor = $Progress.Theme.Success
        }
    }

    if ($null -ne $Percent -and $Progress.CurrentIndex -ge 0) {
        $active = $Progress.Steps[$Progress.CurrentIndex]
        $active.Bar.Visible = $true
        $active.Bar.Value = [int][Math]::Max(0, [Math]::Min(100, [int]$Percent))
        $active.State.Text = '{0} % · {1}' -f $active.Bar.Value, (Format-DeployCenterElapsedTime -Duration $active.Started.Elapsed)
    }
    [System.Windows.Forms.Application]::DoEvents()
}

function Complete-DeployCenterDeploymentProgress {
    param([Parameter(Mandatory=$true)]$Progress)
    if ($Progress.CurrentIndex -ge 0) {
        $active = $Progress.Steps[$Progress.CurrentIndex]
        if ($active.Started -and $active.Started.IsRunning) { $active.Started.Stop() }
        if ($active.Started) {
            $active.State.Text = '{0}: {1}' -f (Get-DeployCenterText -Text 'Completed'), (Format-DeployCenterElapsedTime -Duration $active.Started.Elapsed)
        }
        $active.State.ForeColor = $Progress.Theme.Success
        $active.Bar.Visible = $false
        $active.Complete = $true
    }
}

function Fail-DeployCenterDeploymentProgress {
    param([Parameter(Mandatory=$true)]$Progress)
    if ($Progress.CurrentIndex -ge 0) {
        $active = $Progress.Steps[$Progress.CurrentIndex]
        if ($active.Started -and $active.Started.IsRunning) { $active.Started.Stop() }
        $active.State.Text = '{0}: {1}' -f (Get-DeployCenterText -Text 'Failed'), (Format-DeployCenterElapsedTime -Duration $active.Started.Elapsed)
        $active.State.ForeColor = $Progress.Theme.DangerButton.Background
        $active.Bar.Visible = $false
    }
}

function Format-DeployCenterElapsedTime {
    param([Parameter(Mandatory=$true)][TimeSpan]$Duration)
    if ($Duration.TotalHours -ge 1) { return $Duration.ToString('h\:mm\:ss') }
    return $Duration.ToString('m\:ss')
}

function Set-DeployCenterFormSizing {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$Form,
        [switch]$Resizable
    )
    if ($Resizable) {
        $Form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::Sizable
        $Form.MaximizeBox = $true
    } else {
        $Form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedDialog
        $Form.MaximizeBox = $false
    }
}

function Add-SessionFooter {
    param(
        [Parameter(Mandatory=$true)][System.Windows.Forms.Form]$TargetForm,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [AllowNull()][string]$IPv4,
        [AllowNull()][string]$VncPassword,
        [bool]$ShowFooter = $true,
        [bool]$ShowPassword = $true
    )
    if (-not $ShowFooter) { return }

    $footer = New-Object System.Windows.Forms.Label
    $footer.Name = 'DeployCenterSessionFooter'
    $footer.Text = if ($IPv4) { (Get-DeployCenterText -Text 'Deployment IP:') + " $IPv4" } else { Get-DeployCenterText -Text 'Deployment IP unavailable' }
    if ($ShowPassword -and -not [string]::IsNullOrWhiteSpace($VncPassword)) {
        $footer.Text += "    |    " + (Get-DeployCenterText -Text 'VNC password:') + " $VncPassword"
    }
    $footer.Height = 26
    $footer.Dock = [System.Windows.Forms.DockStyle]::Bottom
    $footer.TextAlign = [System.Drawing.ContentAlignment]::MiddleLeft
    $footer.Padding = New-Object System.Windows.Forms.Padding(12, 0, 0, 0)
    $footer.BackColor = $Theme.PanelAlt
    $footer.ForeColor = $Theme.Text
    $footer.Font = $Font
    $TargetForm.Controls.Add($footer)
    $footer.BringToFront()
}

function New-Label {
    param(
        [Parameter(Mandatory=$true)][string]$Text,
        [Parameter(Mandatory=$true)][int]$X,
        [Parameter(Mandatory=$true)][int]$Y,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [int]$Width = 180,
        [int]$Height = 24,
        [AllowNull()]$Color = $null
    )

    $label = New-Object System.Windows.Forms.Label
    $label.Text = Get-DeployCenterText -Text $Text
    $label.Location = New-Object System.Drawing.Point($X, $Y)
    $label.Size = New-Object System.Drawing.Size($Width, $Height)
    $label.AutoEllipsis = $true
    $label.TextAlign = [System.Drawing.ContentAlignment]::MiddleLeft
    $label.BackColor = [System.Drawing.Color]::Transparent
    $label.ForeColor = if ($null -eq $Color) { $Theme.Text } else { $Color }
    $label.Font = $Font
    return $label
}

function New-GroupBox {
    param(
        [Parameter(Mandatory=$true)][string]$Text,
        [Parameter(Mandatory=$true)][int]$X,
        [Parameter(Mandatory=$true)][int]$Y,
        [Parameter(Mandatory=$true)][int]$Width,
        [Parameter(Mandatory=$true)][int]$Height,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font
    )
    $group = New-Object DeployCenter.ThemedGroupBox
    $group.Text = Get-DeployCenterText -Text $Text
    $group.Location = New-Object System.Drawing.Point($X, $Y)
    $group.Size = New-Object System.Drawing.Size($Width, $Height)
    $group.ForeColor = $Theme.Text
    $group.BackColor = $Theme.Panel
    $group.PanelColor = $Theme.Panel
    $group.BorderColor = $Theme.Border
    $group.TextColor = $Theme.Text
    $group.Font = $Font
    return $group
}

function New-Button {
    param(
        [Parameter(Mandatory=$true)][string]$Text,
        [Parameter(Mandatory=$true)][int]$X,
        [Parameter(Mandatory=$true)][int]$Y,
        [Parameter(Mandatory=$true)][int]$Width,
        [Parameter(Mandatory=$true)][int]$Height,
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Theme,
        [Parameter(Mandatory=$true)][System.Drawing.Font]$Font,
        [ValidateSet('Button','PrimaryButton','DangerButton')][string]$Role = 'Button'
    )
    $button = New-Object System.Windows.Forms.Button
    $button.Text = Get-DeployCenterText -Text $Text
    $button.Location = New-Object System.Drawing.Point($X, $Y)
    $button.Size = New-Object System.Drawing.Size($Width, $Height)
    $button.Tag = $Role
    Set-DeployCenterButtonStyle -Button $button -Theme $Theme -Role $Role
    $button.Font = $Font
    $button.Cursor = [System.Windows.Forms.Cursors]::Hand
    $button.AutoSize = $false
    $button.TextAlign = [System.Drawing.ContentAlignment]::MiddleCenter
    return $button
}

function Get-DeployCenterLogoPathForTheme {
    param(
        [Parameter(Mandatory=$true)][string]$ThemeName,
        [Parameter(Mandatory=$true)][string]$LogoPath,
        [Parameter(Mandatory=$true)][string]$LogoDarkPath
    )
    if ($ThemeName -eq 'Dark' -and (Test-Path -LiteralPath $LogoDarkPath -PathType Leaf)) { return $LogoDarkPath }
    if (Test-Path -LiteralPath $LogoPath -PathType Leaf) { return $LogoPath }
    if (Test-Path -LiteralPath $LogoDarkPath -PathType Leaf) { return $LogoDarkPath }
    return $null
}

function Update-DeployCenterLogo {
    param(
        [Parameter(Mandatory=$true)][AllowNull()][System.Windows.Forms.PictureBox]$PictureBox,
        [Parameter(Mandatory=$true)][string]$ThemeName,
        [Parameter(Mandatory=$true)][string]$LogoPath,
        [Parameter(Mandatory=$true)][string]$LogoDarkPath
    )
    if ($null -eq $PictureBox) { return }
    $selectedLogoPath = Get-DeployCenterLogoPathForTheme -ThemeName $ThemeName -LogoPath $LogoPath -LogoDarkPath $LogoDarkPath
    if ([string]::IsNullOrWhiteSpace($selectedLogoPath)) { return }

    try {
        $newImage = [System.Drawing.Image]::FromFile($selectedLogoPath)
        $oldImage = $PictureBox.Image
        $PictureBox.Image = $newImage
        if ($null -ne $oldImage) { $oldImage.Dispose() }
        $PictureBox.Visible = $true
    } catch {
        # Keep the current logo if the new file is missing or invalid.
    }
}



# Main UI workflows; dot-sourced to explicitly share DeployCenter session state.
function Set-DiskSelectorWidth {
    if ($null -eq $script:cmbDisk -or $null -eq $script:groupDisks) { return }
    Set-DeployCenterDeploymentControlsLayout -Parent $script:groupDisks -Controls $deploymentControls
}

function Set-ControlTheme {
    param([System.Windows.Forms.Control]$Control)

    # The main form background must also change.
    if ($Control -is [System.Windows.Forms.Form]) {
        $Control.BackColor = $script:Theme.Background
        $Control.ForeColor = $script:Theme.Text
    }
    elseif ($Control -is [DeployCenter.ThemedGroupBox]) {
        $Control.BackColor = $script:Theme.Panel
        $Control.PanelColor = $script:Theme.Panel
        $Control.BorderColor = $script:Theme.Border
        $Control.TextColor = $script:Theme.Text
        $Control.ForeColor = $script:Theme.Text
        $Control.Invalidate()
    }
    elseif ($Control -is [System.Windows.Forms.Label]) {
        $Control.ForeColor = $script:Theme.Text
        if ($Control.Name -eq 'lblSelectedWindows') {
            $Control.ForeColor = if ($script:SelectedWindowsEdition) { $script:Theme.Success } else { $script:Theme.Secondary }
        }
        if ($Control.Name -eq 'lblDriverStatus') {
            $Control.ForeColor = if ($script:DriverPackSelection -and $script:DriverPackSelection.Found) { $script:Theme.Success } else { $script:Theme.Secondary }
        }
        # The VNC footer also follows the active theme palette.
        if ($Control.Name -eq 'DeployCenterSessionFooter') {
            $Control.BackColor = $script:Theme.PanelAlt
            $Control.ForeColor = $script:Theme.Secondary
            $Control.Invalidate()
        }
    }
    elseif ($Control -is [System.Windows.Forms.ListView]) {
        $Control.BackColor = $script:Theme.PanelAlt
        $Control.ForeColor = $script:Theme.Text
    }
    elseif ($Control -is [System.Windows.Forms.ComboBox]) {
        Set-DeployCenterComboBoxTheme -ComboBox $Control -Theme $script:Theme
    }
    elseif ($Control -is [System.Windows.Forms.TextBox]) {
        $Control.BackColor = $script:Theme.PanelAlt
        $Control.ForeColor = $script:Theme.Text
    }

    foreach ($child in $Control.Controls) {
        Set-ControlTheme -Control $child
    }
}

function Set-DeployCenterTheme {
    param([Parameter(Mandatory=$true)][string]$ThemeName)

    $availableThemes = @(Get-DeployCenterThemeNames -ThemesRoot $script:ThemesRoot)
    if ($availableThemes -notcontains $ThemeName) { return }
    try {
        $script:Theme = Import-DeployCenterTheme -ThemesRoot $script:ThemesRoot -ThemeName $ThemeName
    } catch {
        & $script:SourceLogAction ("Unable to load theme '$ThemeName' : " + $_.Exception.Message) "ERROR"
        return
    }
    $script:CurrentTheme = $ThemeName
    $script:cmbTheme.BackColor = $script:Theme.Panel
    $script:cmbTheme.ForeColor = $script:Theme.Text
    $script:cmbTheme.Invalidate()
    $script:cmbTheme.Refresh()

    Set-ControlTheme -Control $script:form
    Set-ControlTheme -Control $script:logForm

    # Update the logo if a theme-specific variant exists.
    Update-DeployCenterLogo -PictureBox $script:pictureLogo -ThemeName $script:CurrentTheme `
        -LogoPath $script:LogoPath -LogoDarkPath $script:LogoDarkPath

    $script:lblTitle.ForeColor = $script:Theme.Text
    $script:lblSubtitle.ForeColor = $script:Theme.Secondary

    Set-DeployCenterButtonStyle -Button $script:btnChooseWindows -Theme $script:Theme -Role 'Button'
    Set-DeployCenterButtonStyle -Button $script:btnLog -Theme $script:Theme -Role 'Button'
    Set-DeployCenterButtonStyle -Button $script:btnRefresh -Theme $script:Theme -Role 'PrimaryButton'
    Set-DeployCenterButtonStyle -Button $script:btnDeploy -Theme $script:Theme -Role 'PrimaryButton'
    Set-DeployCenterButtonStyle -Button $script:btnClose -Theme $script:Theme -Role 'DangerButton'
    # Explicitly refresh the main footer when the theme changes.
    foreach ($footer in $script:form.Controls.Find('DeployCenterSessionFooter', $true)) {
        $footer.BackColor = $script:Theme.PanelAlt
        $footer.ForeColor = $script:Theme.Secondary
        $footer.Invalidate()
    }
    $script:cmbTheme.BackColor = $script:Theme.Panel
    $script:cmbTheme.ForeColor = $script:Theme.Text
    $script:cmbTheme.Invalidate()
    $script:groupPC.Invalidate()
    $script:groupDisks.Invalidate()
    $script:cmbDisk.BackColor = $script:Theme.PanelAlt
    $script:cmbDisk.ForeColor = $script:Theme.Text
    $script:cmbDisk.Invalidate()
    # Keep the button above the other header controls.
    $script:cmbTheme.BringToFront()

    # Force a repaint after changing the palette.
    $script:form.SuspendLayout()
    try {
        foreach ($control in $script:form.Controls) {
            $control.Invalidate($true)
        }
        $script:form.Invalidate($true)
        $script:form.Refresh()
    }
    finally {
        $script:form.ResumeLayout($true)
    }
}

function Show-WindowsSourcesDialog {
    $dlg = New-Object System.Windows.Forms.Form
    $dlg.Text = Get-DeployCenterText -Text 'Windows sources - DeployCenter drive and SMB share'
    $dlg.StartPosition = 'CenterParent'
    $dlg.Size = New-Object System.Drawing.Size(1100, 700)
    $dlg.MinimumSize = New-Object System.Drawing.Size(700, 450)
    Set-DeployCenterFormSizing -Form $dlg -Resizable
    # Open directly in fullscreen to use the entire available area.
    $dlg.WindowState = [System.Windows.Forms.FormWindowState]::Maximized
    $dlg.ShowInTaskbar = $false
    $dlg.BackColor = $script:Theme.Background
    $dlg.ForeColor = $script:Theme.Text
    $dlg.Font = $script:FontRegular
    $dlg.KeyPreview = $true
    $dlg.Add_KeyDown({
        param($sender, $eventArgs)
        if ($eventArgs.KeyCode -eq [System.Windows.Forms.Keys]::Escape) {
            $eventArgs.Handled = $true
            $eventArgs.SuppressKeyPress = $true
            $dlg.Close()
        }
    }.GetNewClosure())

    $lblPath = New-Object System.Windows.Forms.Label
    $lblPath.Text = Get-DeployCenterText -Text 'Paths to scan (separated by ;):'
    $lblPath.Location = New-Object System.Drawing.Point(16, 16)
    $lblPath.Size = New-Object System.Drawing.Size(260, 24)
    $lblPath.ForeColor = $script:Theme.Text
    $dlg.Controls.Add($lblPath)

    $txtPath = New-Object System.Windows.Forms.TextBox
    $txtPath.Location = New-Object System.Drawing.Point(16, 42)
    $txtPath.Size = New-Object System.Drawing.Size(560, 26)
    $txtPath.Anchor = 'Top,Left,Right'
    $defaultSourceRoot = $script:DeployVolumeRoot
    if ([string]::IsNullOrWhiteSpace($defaultSourceRoot)) { $defaultSourceRoot = $script:DeployRoot }
    $configuredPaths = [string]$script:Config.SourcePaths
    if ([string]::IsNullOrWhiteSpace($configuredPaths)) {
        $txtPath.Text = $defaultSourceRoot
    } else {
        $txtPath.Text = $configuredPaths.Replace("%DEPLOY_VOLUME%", $defaultSourceRoot)
    }
    $txtPath.BackColor = $script:Theme.PanelAlt
    $txtPath.ForeColor = $script:Theme.Text
    $dlg.Controls.Add($txtPath)

    $btnScan = New-Object System.Windows.Forms.Button
    $btnScan.Text = Get-DeployCenterText -Text 'Search'
    $btnScan.Location = New-Object System.Drawing.Point(650, 40)
    $btnScan.Size = New-Object System.Drawing.Size(100, 30)
    $btnScan.Anchor = 'Top,Right'
    $btnScan.UseVisualStyleBackColor = $false
    $btnScan.FlatStyle = [System.Windows.Forms.FlatStyle]::Flat
    $btnScan.FlatAppearance.BorderColor = $script:Theme.Border
    $btnScan.BackColor = $script:Theme.Accent
    $btnScan.ForeColor = [System.Drawing.Color]::White
    $dlg.Controls.Add($btnScan)

    $btnEditions = New-Object System.Windows.Forms.Button
    $btnEditions.Text = Get-DeployCenterText -Text 'Show editions'
    $btnEditions.Location = New-Object System.Drawing.Point(760, 40)
    $btnEditions.Size = New-Object System.Drawing.Size(150, 30)
    $btnEditions.Anchor = 'Top,Right'
    $btnEditions.UseVisualStyleBackColor = $false
    $btnEditions.FlatStyle = [System.Windows.Forms.FlatStyle]::Flat
    $btnEditions.FlatAppearance.BorderColor = $script:Theme.Border
    $btnEditions.BackColor = $script:Theme.Panel
    $btnEditions.ForeColor = $script:Theme.Text
    $dlg.Controls.Add($btnEditions)

    $list = New-Object System.Windows.Forms.ListView
    $list.Location = New-Object System.Drawing.Point(16, 84)
    $list.Size = New-Object System.Drawing.Size(770, 420)
    $list.Anchor = 'Top,Bottom,Left,Right'
    $list.View = 'Details'; $list.FullRowSelect = $true; $list.GridLines = $true
    $list.MultiSelect = $false
    $list.HideSelection = $true
    $list.BackColor = $script:Theme.PanelAlt
    $list.ForeColor = $script:Theme.Text
    $list.OwnerDraw = $true
    [void]$list.Columns.Add((Get-DeployCenterText -Text 'Type'), 135)
    [void]$list.Columns.Add((Get-DeployCenterText -Text 'Name'), 260)
    [void]$list.Columns.Add((Get-DeployCenterText -Text 'Size'), 80)
    [void]$list.Columns.Add((Get-DeployCenterText -Text 'Path'), 250)

    # The Name column has priority and absorbs the remaining space.
    $resizeSourceColumns = {
        if ($list.Columns.Count -ge 4) {
            $availableWidth = $list.ClientSize.Width - $list.Columns[0].Width - $list.Columns[2].Width - $list.Columns[3].Width - 4
            if ($list.Items.Count -gt 0 -and $list.Items.Count -gt [math]::Floor($list.ClientSize.Height / 20)) {
                $availableWidth -= [System.Windows.Forms.SystemInformation]::VerticalScrollBarWidth
            }
            $list.Columns[1].Width = [Math]::Max(180, $availableWidth)
        }
    }
    $list.Add_SizeChanged($resizeSourceColumns)
    $list.Add_HandleCreated($resizeSourceColumns)

    # Custom-draw headers and rows so the ListView
    # follows the active theme instead of using the native white headers.
    $list.Add_DrawColumnHeader({
        param($sender, $e)
        $headerColor = if ($script:Theme.Contains('TableHeader')) { $script:Theme.TableHeader } else { $script:Theme.PanelAlt }
                $headerBrush = New-Object System.Drawing.SolidBrush($headerColor)
        $textBrush = New-Object System.Drawing.SolidBrush($script:Theme.Text)
        $borderPen = New-Object System.Drawing.Pen($script:Theme.Border)
        try {
            $e.Graphics.FillRectangle($headerBrush, $e.Bounds)
            $e.Graphics.DrawRectangle($borderPen, $e.Bounds.X, $e.Bounds.Y, $e.Bounds.Width - 1, $e.Bounds.Height - 1)
            $flags = [System.Windows.Forms.TextFormatFlags]::Left -bor [System.Windows.Forms.TextFormatFlags]::VerticalCenter -bor [System.Windows.Forms.TextFormatFlags]::EndEllipsis
            [System.Windows.Forms.TextRenderer]::DrawText($e.Graphics, $e.Header.Text, $list.Font, $e.Bounds, $script:Theme.Text, $flags)
        } finally {
            $headerBrush.Dispose(); $textBrush.Dispose(); $borderPen.Dispose()
        }
    })
    $list.Add_DrawItem({
        param($sender, $e)
        if ($list.View -ne [System.Windows.Forms.View]::Details) {
            $e.DrawDefault = $true
        }
    })
    $list.Add_DrawSubItem({
        param($sender, $e)
        $rowBack = if (($e.Item.Index % 2) -eq 0) { $script:Theme.TableRowEven } else { $script:Theme.TableRowOdd }
        $rowFore = $script:Theme.Text
        # Highlight only the selected item, never every row.
        if ($e.Item.Selected -and $list.Focused) {
            $rowBack = $script:Theme.Accent
            $rowFore = [System.Drawing.Color]::White
        }
        $rowBrush = New-Object System.Drawing.SolidBrush($rowBack)
        $textBrush = New-Object System.Drawing.SolidBrush($rowFore)
        $borderPen = New-Object System.Drawing.Pen($script:Theme.Border)
        try {
            $e.Graphics.FillRectangle($rowBrush, $e.Bounds)
            $e.Graphics.DrawRectangle($borderPen, $e.Bounds.X, $e.Bounds.Y, $e.Bounds.Width - 1, $e.Bounds.Height - 1)
            $flags = [System.Windows.Forms.TextFormatFlags]::Left -bor [System.Windows.Forms.TextFormatFlags]::VerticalCenter -bor [System.Windows.Forms.TextFormatFlags]::EndEllipsis -bor [System.Windows.Forms.TextFormatFlags]::NoPrefix
            [System.Windows.Forms.TextRenderer]::DrawText($e.Graphics, $e.SubItem.Text, $list.Font, $e.Bounds, $rowFore, $flags)
        } finally {
            $rowBrush.Dispose(); $textBrush.Dispose(); $borderPen.Dispose()
        }
    })
    # Local filter: it never reruns the scan of drives or shares.
    $lblFilter = New-Object System.Windows.Forms.Label
    $lblFilter.Text = Get-DeployCenterText -Text 'Filter list:'
    $lblFilter.Location = New-Object System.Drawing.Point(16, 80)
    $lblFilter.Size = New-Object System.Drawing.Size(100, 24)
    $lblFilter.ForeColor = $script:Theme.Text
    $dlg.Controls.Add($lblFilter)

    $txtFilter = New-Object System.Windows.Forms.TextBox
    $txtFilter.Location = New-Object System.Drawing.Point(120, 78)
    $txtFilter.Size = New-Object System.Drawing.Size(500, 26)
    $txtFilter.Anchor = 'Top,Left,Right'
    $txtFilter.BackColor = $script:Theme.PanelAlt
    $txtFilter.ForeColor = $script:Theme.Text
    $dlg.Controls.Add($txtFilter)

    $list.Location = New-Object System.Drawing.Point(16, 112)
    $dlg.Controls.Add($list)

    # Explicit shared state between WinForms event handlers.
    # In PowerShell, callbacks may run in a different scope:
    # a local $allFound variable may then remain empty in the filter.
    $sourceState = [hashtable]::Synchronized(@{ AllFound = @() })
    $renderSourceList = {
        param([string]$Query)
        $previousSelection = $null
        if ($list.SelectedItems.Count -gt 0) {
            $previousSelection = [string]$list.SelectedItems[0].SubItems[3].Text
        }

        $needle = ([string]$Query).Trim()
        $visibleEntries = New-Object System.Collections.Generic.List[object]
        $entries = @($sourceState.AllFound)

        foreach ($entry in $entries) {
            if ([string]::IsNullOrWhiteSpace($needle)) {
                [void]$visibleEntries.Add($entry)
                continue
            }

            $searchable = '{0} {1} {2} {3} {4}' -f `
                [string]$entry.Type, [string]$entry.Name, [string]$entry.Path, `
                [string]$entry.Size, [string]$entry.Detail

            if ($searchable.IndexOf($needle, [System.StringComparison]::OrdinalIgnoreCase) -ge 0) {
                [void]$visibleEntries.Add($entry)
            }
        }

        $list.BeginUpdate()
        try {
            $list.Items.Clear()
            foreach ($entry in $visibleEntries) {
                $item = New-Object System.Windows.Forms.ListViewItem([string]$entry.Type)
                [void]$item.SubItems.Add([string]$entry.Name)
                [void]$item.SubItems.Add([string]$entry.Size)
                [void]$item.SubItems.Add([string]$entry.Path)
                if ($previousSelection -and ([string]$entry.Path -eq $previousSelection)) {
                    $item.Selected = $true
                }
                [void]$list.Items.Add($item)
            }
        } finally {
            $list.EndUpdate()
        }

        if ($entries.Count -gt 0) {
            $lblStatus.Text = (Get-DeployCenterText -Text '{0} result(s) shown out of {1}. Instant filter; no files changed.' -FormatArguments @($list.Items.Count, $entries.Count))
        } elseif ([string]::IsNullOrWhiteSpace($needle)) {
            $lblStatus.Text = Get-DeployCenterText -Text 'No ISO/WIM/ESD source or extracted installation was found in the accessible paths.'
        } else {
            $lblStatus.Text = (Get-DeployCenterText -Text 'No results for “{0}”. Clear the filter to see the list again.' -FormatArguments @($needle))
        }
    }
    $txtFilter.Add_TextChanged({ & $renderSourceList $txtFilter.Text })

    $lblStatus = New-Object System.Windows.Forms.Label
    $lblStatus.Text = Get-DeployCenterText -Text 'Read-only scan of the DeployCenter drive and/or SMB share. Separate multiple paths with semicolons.'
    $lblStatus.Location = New-Object System.Drawing.Point(16, 515)
    $lblStatus.Size = New-Object System.Drawing.Size(770, 36)
    $lblStatus.Anchor = 'Bottom,Left,Right'
    $lblStatus.AutoSize = $false
    $lblStatus.ForeColor = $script:Theme.Secondary
    $dlg.Controls.Add($lblStatus)

    $progressAnalysis = New-Object System.Windows.Forms.ProgressBar
    $progressAnalysis.Name = 'progressWindowsSourceAnalysis'
    $progressAnalysis.Style = [System.Windows.Forms.ProgressBarStyle]::Marquee
    $progressAnalysis.MarqueeAnimationSpeed = 30
    $progressAnalysis.Visible = $false
    $progressAnalysis.Anchor = 'Bottom,Right'
    $dlg.Controls.Add($progressAnalysis)

    # Recalculate positions from the actual window size:
    # the table uses the remaining space and the status stays visible at the bottom.
    $resizeLayout = {
        $clientWidth = $dlg.ClientSize.Width
        $clientHeight = $dlg.ClientSize.Height
        $rightMargin = 16
        $gap = 12
        $btnWidth = 88
        $editionsWidth = 148
        $left = 12
        $right = [Math]::Max($left + $btnWidth, $clientWidth - $rightMargin)
        $btnEditionsLeft = [Math]::Max($left, $right - $editionsWidth)
        $btnScanLeft = [Math]::Max($left, $btnEditionsLeft - $gap - $btnWidth)
        $txtPath.Width = [Math]::Max(100, $btnScanLeft - $left - $gap)
        $btnEditions.Location = New-Object System.Drawing.Point($btnEditionsLeft, 40)
        $btnEditions.Width = [Math]::Max(120, $right - $btnEditionsLeft)
        $btnScan.Location = New-Object System.Drawing.Point($btnScanLeft, 40)
        $btnScan.Width = [Math]::Max(80, $btnEditionsLeft - $gap - $btnScanLeft)
        $btnScan.Anchor = 'Top,Right'
        $btnEditions.Anchor = 'Top,Right'
        $txtPath.Anchor = 'Top,Left,Right'
        $lblFilter.Location = New-Object System.Drawing.Point(16, 80)
        $txtFilter.Location = New-Object System.Drawing.Point(120, 78)
        $txtFilter.Size = New-Object System.Drawing.Size([Math]::Max(180, $clientWidth - 152), 26)
        $list.Location = New-Object System.Drawing.Point(16, 112)
        $list.Size = New-Object System.Drawing.Size([Math]::Max(300, $clientWidth - 32), [Math]::Max(120, $clientHeight - 205))
        $list.Anchor = 'Top,Bottom,Left,Right'
        $lblStatus.Location = New-Object System.Drawing.Point(16, ($clientHeight - 52))
        $lblStatus.Size = New-Object System.Drawing.Size([Math]::Max(150, $clientWidth - 164), 24)
        $lblStatus.Anchor = 'Bottom,Left,Right'
        $progressAnalysis.Location = New-Object System.Drawing.Point(($clientWidth - 136), ($clientHeight - 52))
        $progressAnalysis.Size = New-Object System.Drawing.Size(120, 20)
    }
    $dlg.Add_Shown({
        & $resizeLayout
        # Automatically start the first scan when the window opens.
        # The Search button remains available if the user changes the paths.
        $btnScan.PerformClick()
    })
    $dlg.Add_SizeChanged({ & $resizeLayout })

    $btnEditions.Add_Click({
        if ($list.SelectedItems.Count -eq 0) {
            Show-DeployCenterMessage -Message 'Select a source from the list first.' -Title 'Windows editions' -Icon Information -Owner $dlg -Theme $script:Theme -Font $script:FontRegular
            return
        }

        $selectedPath = [string]$list.SelectedItems[0].SubItems[3].Text
        $selectedName = [string]$list.SelectedItems[0].SubItems[1].Text
        $resolvedImage = $null
        $mountTransferred = $false
        $btnEditions.Enabled = $false
        $btnScan.Enabled = $false
        $dlg.Cursor = [System.Windows.Forms.Cursors]::WaitCursor
        $lblStatus.Text = (Get-DeployCenterText -Text 'Analyzing editions in {0}...' -FormatArguments @($selectedName))
        $progressAnalysis.Visible = $true
        $progressAnalysis.BringToFront()
        $dlg.Refresh()
        try {
            $resolvedImage = Resolve-InstallImagePath -SelectedPath $selectedPath -ExistingImage $script:SelectedWindowsEdition
            $imagePath = [string]$resolvedImage.ImagePath
            $editionResult = Get-WindowsImageEditions -ImagePath $imagePath -LogAction $script:SourceLogAction
            $editions = @($editionResult.Editions)
            $globalImageVersion = [string]$editionResult.GlobalVersion
            $lines = foreach ($edition in $editions) {
                $index = if ($edition.ImageIndex) { $edition.ImageIndex } elseif ($edition.Index) { $edition.Index } else { '?' }
                $name = if ($edition.ImageName) { $edition.ImageName } elseif ($edition.Name) { $edition.Name } else { Get-DeployCenterText -Text 'Name unavailable' }
                $arch = if ($edition.Architecture) { [string]$edition.Architecture } else { Get-DeployCenterText -Text 'Architecture unavailable' }
                $version = if ($edition.Version) { [string]$edition.Version } else { Get-DeployCenterText -Text 'Version unavailable' }
                "Index: $index`r`nName: $name`r`nArchitecture: $arch`r`nVersion: $version"
            }
            # The child form is modal: refresh the status before showing it,
            # otherwise the parent form remains visually stuck on "scan in progress".
            $lblStatus.Text = (Get-DeployCenterText -Text '{0} edition(s) found in {1}. Select an edition.' -FormatArguments @($editions.Count, $selectedName))
            $dlg.Refresh()

            # Edition table; retain the selected DISM index for later use.
            $resultForm = New-Object System.Windows.Forms.Form
            $resultForm.Text = Get-DeployCenterText -Text 'Available Windows editions'
            $resultForm.StartPosition = 'CenterParent'
            $resultForm.Size = New-Object System.Drawing.Size(700, 480)
            $resultForm.MinimumSize = New-Object System.Drawing.Size(520, 320)
            Set-DeployCenterFormSizing -Form $resultForm
            $resultForm.ShowInTaskbar = $false
            $resultForm.BackColor = $script:Theme.Background
            $resultForm.ForeColor = $script:Theme.Text

            $sourceLabel = New-Object System.Windows.Forms.Label
            $sourceLabel.Text = (Get-DeployCenterText -Text 'Source:' ) + " $selectedPath"
            $sourceLabel.Dock = [System.Windows.Forms.DockStyle]::Top
            $sourceLabel.Height = 38
            $sourceLabel.Padding = New-Object System.Windows.Forms.Padding(10, 8, 10, 4)
            $sourceLabel.AutoEllipsis = $true
            $sourceLabel.BackColor = $script:Theme.Background
            $sourceLabel.ForeColor = $script:Theme.Text

            $editionList = New-Object System.Windows.Forms.ListView
            $editionList.View = [System.Windows.Forms.View]::Details
            $editionList.FullRowSelect = $true
            $editionList.GridLines = $true
            $editionList.MultiSelect = $false
            $editionList.HideSelection = $false
            # Only one edition can be selected at a time.
            $editionList.Sorting = [System.Windows.Forms.SortOrder]::None
            $editionList.Dock = [System.Windows.Forms.DockStyle]::Fill
            $editionList.BackColor = $script:Theme.Panel
            $editionList.ForeColor = $script:Theme.Text
            [void]$editionList.Columns.Add((Get-DeployCenterText -Text 'Index'), 65)
            [void]$editionList.Columns.Add((Get-DeployCenterText -Text 'Edition'), 260)
            [void]$editionList.Columns.Add((Get-DeployCenterText -Text 'Architecture'), 100)
            [void]$editionList.Columns.Add((Get-DeployCenterText -Text 'Version'), 105)

            # Edition is the priority column; Version keeps a fixed width.
            $resizeEditionColumns = {
                if ($editionList.Columns.Count -ge 4) {
                    $availableWidth = $editionList.ClientSize.Width - $editionList.Columns[0].Width - $editionList.Columns[2].Width - $editionList.Columns[3].Width - 4
                    if ($editionList.Items.Count -gt 0 -and $editionList.Items.Count -gt [Math]::Floor($editionList.ClientSize.Height / 20)) {
                        $availableWidth -= [System.Windows.Forms.SystemInformation]::VerticalScrollBarWidth
                    }
                    $editionList.Columns[1].Width = [Math]::Max(220, $availableWidth)
                }
            }
            $editionList.Add_SizeChanged($resizeEditionColumns)
            $resultForm.Add_Shown($resizeEditionColumns)

            # Custom-draw headers and cells so the ListView
            # follows the Light/Dark theme instead of keeping a white header.
            $editionList.OwnerDraw = $true
            $editionList.Add_DrawColumnHeader({
                param($sender, $e)
                $headerColor = if ($script:Theme.Contains('TableHeader')) { $script:Theme.TableHeader } else { $script:Theme.PanelAlt }
                $headerBrush = New-Object System.Drawing.SolidBrush($headerColor)
                $headerPen = New-Object System.Drawing.Pen($script:Theme.Border)
                try {
                    $e.Graphics.FillRectangle($headerBrush, $e.Bounds)
                    $e.Graphics.DrawRectangle($headerPen, $e.Bounds.X, $e.Bounds.Y, $e.Bounds.Width - 1, $e.Bounds.Height - 1)
                    [System.Windows.Forms.TextRenderer]::DrawText(
                        $e.Graphics, $e.Header.Text, $sender.Font, $e.Bounds,
                        $script:Theme.Text,
                        ([System.Windows.Forms.TextFormatFlags]::VerticalCenter -bor
                         [System.Windows.Forms.TextFormatFlags]::Left -bor
                         [System.Windows.Forms.TextFormatFlags]::EndEllipsis)
                    )
                } finally {
                    $headerBrush.Dispose()
                    $headerPen.Dispose()
                }
            })
            $editionList.Add_DrawItem({ param($sender, $e) })
            $editionList.Add_DrawSubItem({
                param($sender, $e)
                $cellBack = if (($e.Item.Index % 2) -eq 0) { $script:Theme.TableRowEven } else { $script:Theme.TableRowOdd }
                $cellFore = $script:Theme.Text
                if ($e.Item.Selected) {
                    $cellBack = $script:Theme.Accent
                    $cellFore = [System.Drawing.Color]::White
                }
                $cellBrush = New-Object System.Drawing.SolidBrush($cellBack)
                $cellPen = New-Object System.Drawing.Pen($script:Theme.Border)
                try {
                    $e.Graphics.FillRectangle($cellBrush, $e.Bounds)
                    if ($sender.GridLines) {
                        $e.Graphics.DrawRectangle($cellPen, $e.Bounds.X, $e.Bounds.Y, $e.Bounds.Width - 1, $e.Bounds.Height - 1)
                    }
                    [System.Windows.Forms.TextRenderer]::DrawText(
                        $e.Graphics, $e.SubItem.Text, $sender.Font, $e.Bounds,
                        $cellFore,
                        ([System.Windows.Forms.TextFormatFlags]::VerticalCenter -bor
                         [System.Windows.Forms.TextFormatFlags]::Left -bor
                         [System.Windows.Forms.TextFormatFlags]::EndEllipsis)
                    )
                } finally {
                    $cellBrush.Dispose()
                    $cellPen.Dispose()
                }
            })

            foreach ($edition in $editions) {
                $index = if ($edition.ImageIndex) { [string]$edition.ImageIndex } elseif ($edition.Index) { [string]$edition.Index } else { '?' }
                $name = if ($edition.ImageName) { [string]$edition.ImageName } elseif ($edition.Name) { [string]$edition.Name } elseif ($edition.ImageDescription) { [string]$edition.ImageDescription } else { 'Name unavailable' }
                $archValue = $null
                foreach ($propertyName in @('Architecture', 'ImageArchitecture')) {
                    if ($edition.PSObject.Properties[$propertyName] -and $edition.$propertyName) {
                        $archValue = $edition.$propertyName
                        break
                    }
                }
                $arch = if ($null -ne $archValue) {
                    switch ([string]$archValue) {
                        '0' { 'x86' }
                        '5' { 'ARM' }
                        '9' { 'x64' }
                        '12' { 'ARM64' }
                        default { [string]$archValue }
                    }
                } else { 'Unavailable' }
                $version = if ($edition.Version) { [string]$edition.Version } else { 'Unavailable' }

                $row = New-Object System.Windows.Forms.ListViewItem($index)
                [void]$row.SubItems.Add($name)
                [void]$row.SubItems.Add($arch)
                [void]$row.SubItems.Add($version)
                $row.Tag = $edition
                [void]$editionList.Items.Add($row)
            }

            $buttonPanel = New-Object System.Windows.Forms.Panel
            $buttonPanel.Dock = [System.Windows.Forms.DockStyle]::Bottom
            $buttonPanel.Height = 52
            $buttonPanel.BackColor = $script:Theme.Background

            $cancelButton = New-Object System.Windows.Forms.Button
            $cancelButton.Text = Get-DeployCenterText -Text 'Cancel'
            $cancelButton.Size = New-Object System.Drawing.Size(100, 30)
            $cancelButton.Anchor = 'Right,Top'
            $cancelButton.Location = New-Object System.Drawing.Point(0, 10)
            $cancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel

            $validateButton = New-Object System.Windows.Forms.Button
            $validateButton.Text = Get-DeployCenterText -Text 'Select edition'
            $validateButton.Size = New-Object System.Drawing.Size(140, 30)
            $validateButton.Anchor = 'Right,Top'
            $validateButton.Location = New-Object System.Drawing.Point(0, 10)
            $validateButton.Enabled = $false

            $editionList.Add_SelectedIndexChanged({
                $validateButton.Enabled = ($editionList.SelectedItems.Count -gt 0 -and $editionList.SelectedItems[0].SubItems[0].Text -ne '?')
            })
            $validateButton.Add_Click({
                if ($editionList.SelectedItems.Count -gt 0) {
                    $resultForm.Tag = [pscustomobject]@{
                        SourcePath = $selectedPath
                        ImagePath = $imagePath
                        MountedImage = $resolvedImage.MountedImage
                        Edition = $editionList.SelectedItems[0].Tag
                        Index = [int]$editionList.SelectedItems[0].SubItems[0].Text
                        Name = $editionList.SelectedItems[0].SubItems[1].Text
                    }
                    $resultForm.DialogResult = [System.Windows.Forms.DialogResult]::OK
                    $resultForm.Close()
                }
            })
            $editionList.Add_DoubleClick({
                if ($editionList.SelectedItems.Count -gt 0 -and $validateButton.Enabled) {
                    $validateButton.PerformClick()
                }
            })
            $buttonPanel.Controls.Add($cancelButton)
            $buttonPanel.Controls.Add($validateButton)
            $buttonPanel.Add_Resize({
                $validateButton.Location = New-Object System.Drawing.Point(($buttonPanel.ClientSize.Width - $validateButton.Width - 12), 10)
                $cancelButton.Location = New-Object System.Drawing.Point(($validateButton.Left - $cancelButton.Width - 8), 10)
            })

            $resultForm.Controls.Add($editionList)
            $resultForm.Controls.Add($buttonPanel)
            $resultForm.Controls.Add($sourceLabel)
            $resultForm.AcceptButton = $validateButton
            $resultForm.CancelButton = $cancelButton
            Add-SessionFooter -TargetForm $resultForm -Theme $script:Theme -Font $script:FontSmall `
                -IPv4 $script:DeployIPv4 -VncPassword $script:VncPassword -ShowFooter $false
            $dialogResult = $resultForm.ShowDialog($dlg)
            $chosenEdition = $resultForm.Tag
            $resultForm.Dispose()

            if ($dialogResult -eq [System.Windows.Forms.DialogResult]::OK -and $chosenEdition) {
                if ($script:SelectedWindowsEdition -and
                    -not [string]::Equals([string]$script:SelectedWindowsEdition.SourcePath, [string]$chosenEdition.SourcePath, [StringComparison]::OrdinalIgnoreCase)) {
                    [void](Dismount-DeployCenterInstallImage -Image $script:SelectedWindowsEdition)
                }
                $script:SelectedWindowsEdition = $chosenEdition
                $mountTransferred = $true
                $lblStatus.Text = (Get-DeployCenterText -Text 'Selected edition:' ) + " $($chosenEdition.Name) (index $($chosenEdition.Index))."
                & $script:SourceLogAction "Edition selected: $($chosenEdition.Name), index $($chosenEdition.Index), image $imagePath" 'SUCCESS'
                $dlg.DialogResult = [System.Windows.Forms.DialogResult]::OK
                $dlg.Close()
            } else {
                $lblStatus.Text = (Get-DeployCenterText -Text '{0} edition(s) found in {1}. No new edition selected.' -FormatArguments @($editions.Count, $selectedName))
            }
            & $script:SourceLogAction "Edition analysis complete: $imagePath ($($editions.Count) edition(s))." 'SUCCESS'
        } catch {
            $lblStatus.Text = (Get-DeployCenterText -Text "Failed to analyze editions in {0}." -FormatArguments @($selectedName))
            & $script:SourceLogAction "Edition analysis error $selectedPath : $($_.Exception.Message)" 'ERROR'
            Show-DeployCenterMessage -Message $_.Exception.Message -Title 'Edition analysis' -Icon Warning -Owner $dlg -Theme $script:Theme -Font $script:FontRegular
        } finally {
            if ($resolvedImage -and $resolvedImage.MountedImage -and -not $mountTransferred -and
                (-not $script:SelectedWindowsEdition -or $resolvedImage.MountedImage -ne $script:SelectedWindowsEdition.MountedImage)) {
                try { [void](Dismount-DeployCenterInstallImage -Image $resolvedImage) } catch {
                    & $script:SourceLogAction "Unable to dismount the ISO after analysis: $($_.Exception.Message)" 'WARNING'
                }
            }
            $dlg.Cursor = [System.Windows.Forms.Cursors]::Default
            $progressAnalysis.Visible = $false
            $btnEditions.Enabled = $true
            $btnScan.Enabled = $true
        }
    })

    $list.Add_DoubleClick({
        if ($list.SelectedItems.Count -gt 0 -and $btnEditions.Enabled) {
            $btnEditions.PerformClick()
        }
    })

    $btnScan.Add_Click({
        $btnScan.Enabled = $false
        $dlg.Cursor = [System.Windows.Forms.Cursors]::WaitCursor
        $lblStatus.Text = Get-DeployCenterText -Text 'Searching the specified paths...'
        $sourceState.AllFound = @()
        $list.Items.Clear()
        try {
            # The scan never modifies DeployCenter.ini.
            $sourceState.AllFound = @(Find-WindowsSources -RootPath $txtPath.Text -LogAction $script:SourceLogAction)
            & $renderSourceList $txtFilter.Text
            if (@($sourceState.AllFound).Count -eq 0) {
                $lblStatus.Text = Get-DeployCenterText -Text 'No ISO/WIM/ESD source or extracted installation was found in the accessible paths.'
                & $script:SourceLogAction 'No Windows source found in the accessible paths.' 'WARNING'
            }
        } catch {
            $lblStatus.Text = Get-DeployCenterText -Text 'Search failed. See the message.'
            & $script:SourceLogAction "Source detection error: $($_.Exception.Message)" 'ERROR'
            Show-DeployCenterMessage -Message $_.Exception.Message -Title 'Source detection' -Icon Warning -Owner $dlg -Theme $script:Theme -Font $script:FontRegular
        } finally {
            $dlg.Cursor = [System.Windows.Forms.Cursors]::Default
            $btnScan.Enabled = $true
        }
    })

    Add-SessionFooter -TargetForm $dlg -Theme $script:Theme -Font $script:FontSmall `
        -IPv4 $script:DeployIPv4 -VncPassword $script:VncPassword
    [void]$dlg.ShowDialog($script:form)
    $dlg.Dispose()
}

function Update-HardwareView {
    $script:btnRefresh.Enabled = $false
    $script:form.Cursor = [System.Windows.Forms.Cursors]::WaitCursor

    try {
        if (-not (Get-Command Get-HardwareInfo -ErrorAction SilentlyContinue)) {
            throw 'The HardwareInventory module does not provide Get-HardwareInfo.'
        }
        $info = Get-HardwareInfo

        $script:lblManufacturer.Text = (Get-DeployCenterText -Text 'Manufacturer:') + " $(Get-DeployCenterText -Text ([string]$info.Manufacturer))"
        $script:lblModel.Text = (Get-DeployCenterText -Text 'Model:') + " $(Get-DeployCenterText -Text ([string]$info.Model))"
        $script:lblSerial.Text = (Get-DeployCenterText -Text 'Serial number:') + " $(Get-DeployCenterText -Text ([string]$info.SerialNumber))"
        $script:lblFirmware.Text = (Get-DeployCenterText -Text 'Firmware:') + " $(Get-DeployCenterText -Text ([string]$info.Firmware))"
        $script:lblArchitecture.Text = (Get-DeployCenterText -Text 'Architecture:') + " $($info.Architecture)"

        $script:HardwareInventory = $info
        if (Get-Command Update-DeployCenterDriverStatus -ErrorAction SilentlyContinue) { Update-DeployCenterDriverStatus }
        $previousDiskIndex = $null
        if ($null -ne $script:cmbDisk.SelectedItem -and $null -ne $script:cmbDisk.SelectedItem.Tag) {
            $previousDiskIndex = [string]$script:cmbDisk.SelectedItem.Tag
        }
        $script:RefreshingDiskList = $true
        $script:cmbDisk.BeginUpdate()
        try {
            $script:cmbDisk.Items.Clear()
            foreach ($disk in $info.Disks) {
                $diskLabel = "Disk {0} - {1} - {2:N1} GB - {3} - {4}" -f $disk.Index, $disk.Model, $disk.SizeGB, $disk.BusType, $disk.Status
                $diskChoice = [pscustomobject]@{ Text = $diskLabel; Tag = [string]$disk.Index }
                [void]$script:cmbDisk.Items.Add($diskChoice)
            }
            $script:cmbDisk.DisplayMember = 'Text'
            if ($script:cmbDisk.Items.Count -gt 0) {
                $selectedIndex = -1
                if ($null -ne $previousDiskIndex) {
                    for ($i = 0; $i -lt $script:cmbDisk.Items.Count; $i++) {
                        if ([string]$script:cmbDisk.Items[$i].Tag -eq $previousDiskIndex) { $selectedIndex = $i; break }
                    }
                }
                if ($selectedIndex -lt 0 -and $script:cmbDisk.Items.Count -eq 1) { $selectedIndex = 0 }
                $script:cmbDisk.SelectedIndex = $selectedIndex
            }
        }
        finally {
            $script:cmbDisk.EndUpdate()
            $script:RefreshingDiskList = $false
        }
        $script:SelectedDiskIndex = if ($script:cmbDisk.SelectedIndex -ge 0) { [string]$script:cmbDisk.SelectedItem.Tag } else { $null }

        Write-DeployInventory -InventoryDir $script:InventoryDir -InventoryFile $script:InventoryFile -HardwareInfo $info -DeploymentIPv4 $script:DeployIPv4 -VncPassword $script:VncPassword -LogAction $script:SourceLogAction

        & $script:SourceLogAction "Hardware inventory refreshed." "SUCCESS"

        foreach ($errorMessage in $info.Errors) {
            & $script:SourceLogAction $errorMessage "WARNING"
        }

        if ($info.Disks.Count -eq 0) {
            & $script:SourceLogAction "No physical disk detected." "WARNING"
        }
    }
    catch {
        & $script:SourceLogAction "Inventory error: $($_.Exception.Message)" "ERROR"
        if (-not $script:NonInteractive) {
            Show-DeployCenterMessage -Message $_.Exception.Message -Title 'DeployCenter error' -Icon Error -Owner $script:form -Theme $script:Theme -Font $script:FontRegular
        }
    }
    finally {
        $script:btnRefresh.Enabled = $true
        $script:form.Cursor = [System.Windows.Forms.Cursors]::Default
    }
}

function Get-PartitionProfileSizingSelection {
    param(
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Profile,
        [Parameter(Mandatory=$true)]$DiskInfo,
        [System.Collections.IDictionary]$InitialValues = @{}
    )

    $capacity = Get-DeployCenterPartitionSizingCapacity -Profile $Profile -DiskSizeBytes ([long]$DiskInfo.SizeBytes)
    return Show-DeployCenterPartitionSizingDialog `
        -Profile $Profile `
        -AvailableGB $capacity.UsableGB `
        -Theme $script:Theme `
        -Font $script:FontRegular `
        -Owner $script:form `
        -InitialValues $InitialValues
}

function Set-PartitionProfileSizingSelection {
    param(
        [Parameter(Mandatory=$true)][System.Collections.IDictionary]$Profile,
        [Parameter(Mandatory=$true)]$DiskInfo,
        [System.Collections.IDictionary]$InitialValues = @{}
    )

    $selection = Get-PartitionProfileSizingSelection -Profile $Profile -DiskInfo $DiskInfo -InitialValues $InitialValues
    if ($null -eq $selection) { return $false }
    $script:SelectedPartitionSizing = New-DeployCenterPartitionSizingState -Profile $Profile -DiskInfo $DiskInfo -Selection $selection
    return $true
}

function Update-DeployCenterLayout {
    if ($null -eq $script:form -or $script:form.IsDisposed) { return }
    $w = $script:form.ClientSize.Width
    $h = $script:form.ClientSize.Height
    $m = 24
    $contentWidth = [Math]::Max(300, $w - (2 * $m))

    # Header: keep the theme selector aligned to the right edge.
    if ($null -ne $script:cmbTheme) {
        $script:cmbTheme.Location = New-Object System.Drawing.Point([Math]::Max($m, $w - $m - $script:cmbTheme.Width), 25)
    }

    # The two upper panels keep their height but stretch horizontally.
    $script:groupPC.Location = New-Object System.Drawing.Point($m, 100)
    $script:groupPC.Size = New-Object System.Drawing.Size($contentWidth, 90)
    $script:groupDisks.Location = New-Object System.Drawing.Point($m, 205)
    # Keep the panel bottom clear of the action buttons at the minimum 800x600 layout.
    $script:groupDisks.Size = New-Object System.Drawing.Size($contentWidth, 270)
    Set-DiskSelectorWidth

    $footerHeight = 26
    $buttonHeightLocal = 38
    $buttonYLocal = $h - $footerHeight - 14 - $buttonHeightLocal

    $buttonWidthLocal = 140
    $buttonGapLocal = 12
    $script:btnClose.Size = New-Object System.Drawing.Size($buttonWidthLocal, $buttonHeightLocal)
    $script:btnRefresh.Size = New-Object System.Drawing.Size($buttonWidthLocal, $buttonHeightLocal)
    $script:btnDeploy.Size = New-Object System.Drawing.Size($buttonWidthLocal, $buttonHeightLocal)
    $script:btnLog.Size = New-Object System.Drawing.Size($buttonWidthLocal, $buttonHeightLocal)
    $script:btnClose.Location = New-Object System.Drawing.Point([Math]::Max($m, $w - $m - $buttonWidthLocal), $buttonYLocal)
    $script:btnDeploy.Location = New-Object System.Drawing.Point([Math]::Max($m, $script:btnClose.Left - $buttonGapLocal - $buttonWidthLocal), $buttonYLocal)
    $script:btnRefresh.Location = New-Object System.Drawing.Point([Math]::Max($m, $script:btnDeploy.Left - $buttonGapLocal - $buttonWidthLocal), $buttonYLocal)
    $script:btnLog.Location = New-Object System.Drawing.Point($m, $buttonYLocal)
    Set-DiskSelectorWidth
}