Features：
• Support all transformations like 'rotation', 'skew' and 'scale' (except 3D)
• Support all tweens(classic, motion and etc), keyframes and layers
• Support mask layers
• Support bitmap and vector graphics
• Support all clip color effects like 'brightness', 'tint', 'alpha' and etc
• Support most blending modes (all except Alpha and Erase)
• Simple runtime API for controlling your animations in Unity
• Automatic packing texture atlases of animations with different settings
• Great performance with zero allocations in update loop
• Frame labels to separate sequences in one timeline
• Export marked "for export" clips and main timeline
• Live preview of animations in the Unity editor
