On this pageUI.IBackgroundProvider Index MethodsaddDrawingclearAllprepareCachereleaseCachesetBackgroundColorMethods addDrawingaddDrawing(idrawing: IDrawing): voidParametersidrawing: IDrawingReturns voidclearAllclearAll(): voidReturns voidprepareCacheprepareCache(): voidReturns voidreleaseCachereleaseCache(): voidReturns voidsetBackgroundColorsetBackgroundColor(color: number): voidParameterscolor: numberReturns void