So the new expansion to Dungeons of Dredmor added a new "Encrusting" system. This system has added at least one new stat, or mechanic, or pulley/lever/other spinning thing to the game. Problem is, there's no help in the game, and this new icon does not show up on the character screen, so I don't know what it is!
For your viewing pleasure, here is an example, complete with freehand circle!.
Does anyone know what this icon mean? If it's a new game mechanic, what is this new mechanic, and how does it work?