Omar Cornut, who's a full time developer of dear imgui (https://github.com/ocornut/imgui), an immediate-mode UI library primarily used to create content-creation and debug/visualization tools.

He was using Patreon until the end of 2019, but has actually removed it since he already got so much corporate sponsors over the years (His platinum sponsors right now are Blizzard, Google, Nvidia, and Ubisoft... enough said.) And he wholeheartedly deserves all the money, since his UI library is just so monumentally important for anyone doing 3D graphics or gamedev.