More supported formats?

This may be a higher technical ask, but it'd be neat if it could work. There's these two websites where you can create and clean up pixel and sprite art, piskelapp.com and pixilart.com. Their formats are .pixil and .piskel. If I could port the formats into kandipad like I can pngs for reference pictures, then I could retain a lot of the pixel points better instead of them 'smearing' in kandipad like they do when I save a sprite as a png to port as a reference pic. I hope I made sense?