I am using a slightly modified version that tracks increasing damage instead of lowering hit points - but everything else is the same. I would love to have the option to to set PCs, and NPCs separetly, to thier own 100% color (instead of it being clear). It would be the opposite of having the red X pop up at 0% in thoery. Using top down view tokens on colorful maps is sometimes problematic visually, and adding an aura helps everyone see them better. Once they take 1 point of damage its fine as the green kicks in, its the rest of the time I am looking for help with.