* Added custom animation/transform support
* Added Rollback support
* Added special layers support
* Rewritten parts of code responsible for displaying the animation
* Rewritten animation creator to mirror Doll-like file behaviour
* Fixed mouse button events handling
* Fixed raise error type
* Fixed inability to add more than one layer for each frame
* Replaced PY2 format with f strings for clarity
LoafyLemon
c50a3cf6bd