@alexander3ddev i tried to do it one time but i have some difficulties to focus pay attention, so it would be extremeley uncomfortable to watch me work xd
@alexander3ddev what i do is click render properties (the highlighted button on the image) scroll down, open Film and check the Transparent box
so when you render it (remember to save as RBGA) it has a transparent background
now you can use
https://t.co/rj9egsP1YU to add the outlines