I would like to see a similar plugin for Blender. Vertex painting hasn’t changed in 10 years - in fact it peaked at 2.49 and has seen a steady decline since then. Anyone up for the challenge?
It looks like a major issue is that “color” is defined in Blender as RGB with no A component.
I have never made a plugin or done anything with Python, but I’m going to give this a shot. I’ve been waiting around for someone to work on this but no one has taken it up. If you are familiar with python and have some ability I would be happy to work with you developing the vertex features from an artist perspective.
One thing I found recently is the the script “Bake UV-Texture to Vertex Colors” written by CoDEmanX. This is a step in the right direction for sure.
Ideally the plugin would treat each RGBA channel as its own layer.
another useful script is the color palettes script that is included with Blender. When you are vertex painting you are usually only mixing pure colors