Text shaped metal plates for signs and labels. Letters, numbers and symbols. Iron, copper, large and small variants.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
More visible on the large plates, but you walk up above them you seem to go behind http://imgur.com/a/VHYNu
There will be a new entity type in the next factorio version that I can use to fix this.
