I'm liking the tool so far, great work!
If i had any notes it would be that i tried using another add-on called vertex studio to vertex paint a UBMesh, but editing the mesh later erases all vertex colors. Not a huge issue but it would be useful if vertex colors were preserved in some capacity.
ah yeah sorry i jumped the gun a bit, hadn't found the built in vertex painter.
After playing around with it for a bit, i am wanting a masking feature so i can paint just within some selected faces.
Less importantly i can see the wireframe when vertex painting, but it would be cool if the vertices and their colors were more visible like they are in vertex studio.