Remove the "Straight" pieces from Curved Foundations/Rooms/Platforms/Pools

Each curved prefab piece has a straight piece on the sides. 

So if you place a 3x3 rounded (whatever), it's actually 4x4 tiles because two sides have a single tile of "straight" piece on them.

This is annoying and stupid. We don't need these. If you're trying to make a round platform you have to place a piece, click it, drag in both sides, then copy it. Why bother with the drag-in-both-sides part? Same for all the other curved pieces, of every size and style. Why are they like this?

While we're at it, make the minimum sizes of these pieces smaller to begin with. Why is the smallest room piece 3x3? I use these to make 2x2 landings for from door stairs or to add a 1x1 piece onto something so I can extend it with a 1 tile wide chunk, or whatever. But they start at 3x3 minimum. Why not just make them 1x1? There's no downside to this.