I think would be good cosmetic improvent, if a message box would appear when looking buildings that would state its condition, right now it just says the health. This building is fully operational This building needs repairs This building is hacked
if the bar is at the end, it's healthy If the bar is anywhere else, it's in need of repairs. If there is grey smoke coming from the building, it is damaged beyond half it's health. If there is purple smoke coming from the building, it has been sabotaged.
Yep, I know that it the state of the building can already be interperated, but this would just be a nice cosmetic addition, final touch.