Describes the Ribbon bar icons appearance. 
| Enumerator | 
|---|
| BCGPRibbonIconsLook_Original | Don't change icons appearance.  | 
| BCGPRibbonIconsLook_InvertLuminosity | Luminosity of the icons is inverted.  | 
| BCGPRibbonIconsLook_CustomLuminosity | Custom luminosity of the icons is specifies.  | 
| BCGPRibbonIconsLook_Simplified | Icons are simplified.  |