Ability to draw in different colors

[YokoZar]

It would be nice if it were possible to draw in different colors, even if such a thing had to be coordinated through a lua gadget (or possibly widget). In coop now you can have 8 players on a single team all controlling the same units, but they all share a color so it's hard to tell who drew what.

In theory, we should all have a separate "default" color given to us that may or may not be the same color as our units (since this is now meaningless in coop as we all share the same units). I could then draw in green/red/yellow depending on what I want.