Coloured ceramics adds every dye colour for the following:
The clay balls may be crafted together to create other colours, the same way you can do so with dyes, and all balls can be smelted to its brick counterpart.
There is a minor name change between British and American English for grey and gray.
The mod aims to add a little more customisability to your builds whilst keeping as close to vanilla as possible.
Mod updates may come later for stairs, slabs, walls, and a creative tab. Please suggest anything I should change or add.