Support morph shapes WIP
Avoid using default argument values in internal functions
Some cleanup
Fix morph path deserialization
Fix Bounds::unionInPlace
Remove ratio from Frame, handle it in ShapeRenderable
Fix morphing colors
Fix line style serialization
Misc fixes and cleanup
Fix variable name conflict in RenderableShape::_readMorphGradient
Implement hit testing for morph shapes WIP
Content bounds should be initialized with sentinel values
Introduce bubbling flags
Get hit testing to work
Keep ratio in the shape frame, pass to source at rendering time
Fix regressions
Fix lint error
Fix line styles
Add MorphShapeRenderable
Add acid test