question: private Shape decodeEdge ( int width , int height ) { path . reset ( ) ; path . moveTo ( width - 2 , 0 ) ; path . lineTo ( width - 2 , height - 4 ) ; path . lineTo ( width - 4 , height - 2 ) ; path . lineTo ( 3 , height - 2 ) ; return path ; }
target:  Create the button edge shape.