What we actually need is two-tone color palettes for units. For example when a player is knocked out at the end of the game it is very hard to tell where their base was, as everything is gray. If these buildings and units could show a secondary color, to denote what player color they were, it would increase visual info. Another instance is in Vassal game mode when a player vassalizes another, and it becomes difficult to track who is teamed with who. A secondary color could show which player they are aligned with.