I'd throw in the armors. It would be nice to apply a CustomColor versus a tint. Iron armors appear to resist even tints; as with many things color and effect appear to be derived from the prefab/model/mesh and not independent colors.
Or...perhaps items could have the same default color and every version of that item be a tint.
As an example, the plaidshirt has a default color which is neutral and each shirt has a tint which establishes the color. Plaid shirts seem to do fine in this regards; other items such as the denim pants are ok, with the armors not doing as well (try making iron armor black, or any other color, for that matter).
Vote h0tr0d 2016 -- the "icon".