So, I like to use castle blocks to further customize my houses - for example, adding a bathroom to one of the Marleybone houses. This would look awesome if I could wallpaper the blocks, but I can't. I understand, sort of, why we're unable to wallpaper them, so instead, what if there were sets of castle blocks in the crown shop that match the default wallpaper of the houses?
Or, at the very least, let us purchase wallpaper for our houses that matches the castle blocks.