Change the default CornerTreatment created in MaterialShapeUtils from CornerTreatment() to RoundedCornerTreatment(0). This matches the default previously created from ShapeAppearanceModel constructors.
This change unifies the defaults created in ShapeAppearanceModel's constructors with the default created by MaterialShapeUtils, by converging the two default corner and edge treatment creation methods into one method in MaterialShapeUtils. That method is then called from MaterialShapeUtils#createCornerTreatment#createCornerTreatment() and ShapeAppearanceModel's constructors.
This change also renames getDefaultCornerTreatment() to createDefaultCornerTreatment() to convey that the method instantiates an object.
PiperOrigin-RevId: 222269551
Add shapeAppearance and shapeAppearanceOverlay attributes. These attributes combine to support shapes theming. ShapeAppearance is modeled after TextAppearance. A shapeAppearance attribute contains a style reference that is meant to be defined at the theme level. Since changing anything defined in the shapeAppearance would clobber everything else in the ShapeAppearance, the shapeAppearanceOverlay attribute is provided for clients to modify the shapeAppearance.
PiperOrigin-RevId: 215273652
Add shapeAppearance and shapeAppearanceOverlay attributes. These attributes combine to support shapes theming. ShapeAppearance is modeled after TextAppearance. A shapeAppearance attribute contains a style reference that is meant to be defined at the theme level. Since changing anything defined in the shapeAppearance would clobber everything else in the ShapeAppearance, the shapeAppearanceOverlay attribute is provided for clients to modify the shapeAppearance.
PiperOrigin-RevId: 215242636
