Okay… then i’m gonna through in this (also very good looking so far… ):
Sadly no direct binary for linux (yet? …and maybe too much for graphicscard… 
)
…and remind ( persistent “fan” ) of the One-man-show MaterialMaker… 
…which may be not that advanced… (…but “light” enough for me… and i did not used the paint part… )
But maybe the original topic app is more interesting when people had already substance…