I love the app! Really good job! I will use it in some Game Jams, that's for sure!
Is there a possibility of creating or choosing outline colors? For some cases, I would love to have a single black outline for my character!
Thank you! I'm glad you are enjoying the creator! You are able to clone and adjust palettes for all sprites. Changing the darkest color will change the outline color for each sprite, though that might not be the look you are seeking. Here is a quick example of coloring the sprites outlines will look like. Or are you looking for a single outline that goes around the whole character?