First thanks for the great asset - I had been meaning to pick this up after I saw you mention you were going to put this for sale. Initially I thought i would be totally fine with only doing the vertex colors, but then I decided to extend the framework to use atlas-ed textures too. It really wasn't much work, only a couple hours since you had everything in place already. I'm putting it to use in a procedural world generator for a game Idea I have.
All it took was some changes to chunk generation and a new shader.
Thought you all might like to see the results: http://jblamber-kiwi.tumblr.com/post/122225583987/a-few-modifications-to-some-chunk-generation-here
Thanks again for the great framework!