Nitwit Villagers Looking More Identifiable

As someone who struggles with red-green colourblindness, I consistently struggle to tell the difference between Nitwit Villagers and Unemployed Villagers. I think Nitwits should be visually tweaked to make them easier to identify for players like myself who struggle with colourblindness. Perhaps by adding an element to the texture that is not present on any other Villager professions?