protected Theme()
{
var themeType = GetType();
if (Themes.ContainsKey(themeType))
{
throw new Exception("Theme must be a Singleton");
}
var genericDictionaries = ThemeGenericDictionaries.GetValueOrDefault(themeType);
if (genericDictionaries != null)
{
_genericDictionaries.AddRange(genericDictionaries);
}
Themes[themeType] = this;
var themeResourceDictionaryLoader = ThemeResourceDictionaryLoader.Instance;
themeResourceDictionaryLoader.XamlResourceLoading += OnXamlResourceLoading;
}