Animation layers would make things way better and easier to manage… Instead of everything jammed on the screen, you could separate them across layers… like keeping the character on layer 1, effects on layer 2, and the background on layer 3. It’d help reduce clutter and make animation way more better.

Add a feature that allows users to import GIFs, which are automatically split into frames/sprites.
These sprites can be used as animation reference and easily deleted once they’re no longer needed.