I just bought a BrickHeadz set (the Captain America one) and it comes with a piece to put on the models base. The part number is 6188632 and is described on a few sites as a black 2x4 with decoration. What I don't get is what the purpose of the decoration is. Here is a picture of the piece.
The decoration looks like a generic BrickHeadz head with a speech bubble with the number one. So is that all there really is to it or is there something I'm missing? I thought it might represent the models number but this particular one is number five in the series not one.
What am I missing here?