Customizable Blocks

When I play Minecraft Dungeons, I see all of these different variations of blocks. Sand Layers, Dirt with bits of Cobblestone in them, and Stone Bricks with sand and snow on them. These types of blocks should be added to the game, and not being able to be gotten out of the creative inventory. These could be crafted, for example, Sand Layers could be added, and would work just like Snow Layers, and either one of these combined with Stone Bricks could be Sandy/Snowy Stone Bricks, where each is on top of each individual brick on the texture. At the camp, there is dirt with a few cobblestones in it for the path, and this could just be from dirt combined with cobblestone. The possibilities from this are endless.