I haven't decided.
If we standardize it (which I'm for), I'm not sure how we should do it. Make one fixed design where you can choose two or three different materials in the pattern, or make a few different designs which you can choose from and also let you choose the materials?
Design 1 is the style currently used in Spawntown (red = bricks, green = sandstone).
We could also make these blocks standardized, but allow everything above the bottom three blocks to be however you like it. So the bottom three blocks are standardized with for example sandstone, brick, sandstone in Spawntown, and then a mural above them from layer 52 to the surface (if it were in the tunnel which was dug up to the surface). I think that's the best option.
We could also vote for it. Do you want to vote for it? We can make a poll to determine if we should vote for it. Uhh.