Let us paint foundations and platform sides with wallpaper.

Seriously, there are so few choices for foundation and platform sides that it's embarrassing. It's sometimes difficult finding something that looks good with the rest of the build. I know items can be flagged for multiple things, for example, some lights show up in several categories in the object browser. Just let foundations and platforms display the wallpaper categories also. Things would be so much simpler. I don't profess to know how this game is coded, but I beg you, please do this. It's long overdue.