Sticker boxes

[Orion Pobursky]

I think it would be wrong to not use/have/allow a resizable standard backside.

I don't disagree with this sentiment but I think it will lead right back we are right now. 

I think standardization of sticker sizes is a Good Thing ™. Everyone's measurement methods will be slightly different. All stickers for a 2 x 2 Tile, 2 x 4 Brick, or Slope Brick Curved  2 x  2 x  0.667 should all be the same size. We could have a reference doc that lists what dimension to use for certain brick sizes, but I think this is a cumbersome solution. The easiest way to ensure this is to have a standard sized backing files and make the author explain if they choose to do things differently.