Well... No, I don't use layers, MS paint does not even support them

No, I just do my drawings, and afterwards I paste the original template on it again (needs a bit targeting ability to hit the pixels) but when pasting I use "transparent selection" so only colors different from my secondary color (usually white) are pasted, and not the white between it, so I do my paints, and just put the rest over them again

Jona L.