based off https://github.com/12Me21/chatdraw2
this has layers. you can add/remove them on the fly and see them all at once.
you can move layers and clone existing onces
you can combine your layers into a single image with EXPORT
SAVE LAYER and LOAD LAYER work on your currently selected layer
SAVE and LOAD will stitch/unstitch your layers vertically, effectively saving/loading all your layers at once.
to change resolution and palette size, add ?WIDTHxHEIGHTcCOLORS. COLORS can be up to 16. i wouldn't recommend really big canvases over 500x500 cause then it gets kinda slow and uses a lot of memory