I'll be streaming December 8th, mark your calendars today!
If you are tired of not having enough color options in your worlds this could be just what you didn't know you were looking for.
To paint items in default you'll want to grab this mod pack.
The problems with the grey brush, and fence texture changing have since been corrected.

*You can paint anything from mods that have added support for mypaint.

LINKS:
Download Mod
Github repository
Forum Topic: Please visit this page to ask questions or request features.

More mods by this modder

It doesn't look like I've reviewed any other mods by this author, feel free to suggest one.