software for coloring/painting an existing mesh  

software for coloring/painting an existing mesh

Hi, I'm using a MK3s & MMU2s.  I try to use more the MMU2 but what I didn't found is a "painting / coloring" Software for postprocessing of a designed mesh. Colored laysers are fine but not sufficiant. SW like simply color 3d or Canvas/Mosaic etc. are online based, which I don't like, but they would do what I'm looking for. Pepr3d is exactly what I want ,  in princiopal but this is a kind of experimental SW made as Seminar work (-> no SW maintenance exists) and causes printing errors. Cutting with meshmixer upfront is an option but too comlicated and time consuming.  Isn't there realy no Windows SW available which works like the simplycolor 3d but offline? Btw Sculptris , Zbrush etc are far too big. And downloading of already colored STL/3mf etc. isn't not always a solution . Lots of caveats, but maybe you know something.

Any idea is appreciated. many thanks in advance