| Name | Description | |
|---|---|---|
 | DefaultThemeName | The default theme name id.
When assigned to the Theme property of a theme controller, indicates that it should use the default application theme. |
| NoTheme | The empty theme name id.
When assigned to the "Theme" extender property (provided by C1ThemeController) on a control, indicates that no theme should be applied to that control by the theme controller. |