PsUi

1.0.1

private/theme/Set-ActiveTheme.ps1

                                <#

.SYNOPSIS

    Sets the active theme for the application.

#>

function Set-ActiveTheme {

    [CmdletBinding()]

    param(

        [Parameter(Mandatory)]

        [string]$Theme

    )

    # Bail if theme doesn't exist

    $themes = [PsUi.ModuleContext]::Themes

    if (!$themes -or !$themes.ContainsKey($Theme)) {

        $available = if ($themes) { $themes.Keys -join ', ' } else { 'none' }

        Write-Warning "Theme '$Theme' not found. Available: $available"

        return

    }

    [PsUi.ModuleContext]::ActiveTheme = $Theme

    # Clear cached brushes since theme colors are changing

    $script:_brushCache = @{}

    if ([PsUi.ModuleContext]::IsInitialized) {

        # Pass theme colors to C# engine - it handles all control updates

        # including the theme button icon via Tag='ThemeButtonIcon'

        $colors = $themes[$Theme]

        [PsUi.ThemeEngine]::ApplyTheme($Theme, $colors)

        Write-Verbose "Applied theme '$Theme' from PowerShell definitions"

    }

}