This is a test to demonstrate how a PWA can respond to Windows’ Dark Mode.
if ( window.Windows )
{
var uiSettings = new Windows.UI.ViewManagement.UISettings();
var color = uiSettings.getColorValue( Windows.UI.ViewManagement.UIColorType.background );
if ( color.r == 0 && color.g == 0 && color.b == 0 )
{
// Dark mode
}
else
{
// Light mode (default)
}
}