Re: [BB][Base Game] Neutral colours for wallpapers/paints ect.

This is painfully true. One sorely lacking thing is also a plain white version of more wall types. There is a plain white version of only a fraction of the walls, a lot of colourful wallpapers and paints with mouldings at the floor and ceiling level do not have a matching moulding in any white wall.

EDIT:

Here are examples of some very "basic" basegame wallpapers and paints that do not match the mouldings of any plain white basegame wall. Some would have a matching bottom but not a matching top.