Function Invoke-WPFDarkMode { <# .DESCRIPTION Sets Dark Mode on or off #> Param($DarkMoveEnabled) Try{ if ($DarkMoveEnabled -eq $false){ Write-Host "Enabling Dark Mode" $DarkMoveValue = 0 } else { Write-Host "Disabling Dark Mode" $DarkMoveValue = 1 } $Theme = "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\Personalize" Set-ItemProperty -Path $Theme -Name AppsUseLightTheme -Value $DarkMoveValue Set-ItemProperty -Path $Theme -Name SystemUsesLightTheme -Value $DarkMoveValue } Catch [System.Security.SecurityException] { Write-Warning "Unable to set $Path\$Name to $Value due to a Security Exception" } Catch [System.Management.Automation.ItemNotFoundException] { Write-Warning $psitem.Exception.ErrorRecord } Catch{ Write-Warning "Unable to set $Name due to unhandled exception" Write-Warning $psitem.Exception.StackTrace } }