More Concrete That Just Makes Sense!!

Concrete blocks are such a beautiful touch to builds. And to any DETAILED build, stairs and slabs bring it together. Without them, houses would just a bland box to live in. Why not CONCRETE SLABS and STAIRS? Think about it, we made it this far and still dont have SOLID colored stairs and slabs. I am emphasizing the ability to build with all 16 colors in minecraft in new ways. There would be so much we can do with them. Matter of fact not even just concrete, what about terrocotta? All blocks that are smooth and one-colored, are only available in a default minecraft grid shape. I think variety of colors in different shapes would go a long way.