I'm using the tinting feature to set the background color of the application button and backstage to a custom color (we have a couple of different apps within our suite and so being able to differentiate them by color ala Office is just awesome). I don't want to touch the rest of the ribbon coloring, we want to keep that standard across our UIs. It's working great, except the backstage close button isn't being tinted, presumably because I'm not setting it's tint group key - what is it? It's not defined in TintGroupSets.All (that I can see, anyway).
// Build a color-tinted theme
TintedThemeCatalog catalog = new TintedThemeCatalog("Green", ThemeName.MetroLight.ToString());
catalog.TintGroups.AddRange(TintGroupSets.ApplicationMenu, Colors.Green);
catalog.TintGroups.AddRange(new string[] { "BackstageButton", "BackstageTabControl", "BackstageHeaderSeparator", "<nameofthebackstageclosebuttonhere>" }, Colors.Green);
ThemeManager.RegisterThemeCatalog("Green", catalog);
// Apply the theme to a Ribbon
ThemeManager.SetTheme(MainRibbon, "Green");
