added in version 22.1.0
  
  
android.support.v17.leanback.graphics
Classes
| BoundsRule | This class contains the rules for updating the bounds of a CompositeDrawable.ChildDrawable. | 
| BoundsRule.ValueRule | This class represents individual rules for updating the bounds. | 
| ColorFilterCache | Cache of ColorFilters for a given color at different alpha levels. | 
| ColorFilterDimmer | Helper class for applying a dim level to a View. | 
| ColorOverlayDimmer | Helper class for assigning a dim color to Paint. | 
| CompositeDrawable | Generic drawable class that can be composed of multiple children. | 
| CompositeDrawable.ChildDrawable | Wrapper class holding a drawable object and BoundsRuleto update drawable bounds
 when parent bound changes. | 
| FitWidthBitmapDrawable | Subclass of Drawablethat can be used to draw a bitmap into a region. | 
