Another form of helper is the presence of 6 colored overlays. These are displayed either by pressing a button or with the TAB key. They are:
1. Military control mode. Shows the regions where you have significant patrols or presence (even if you don't have an actual army). Having more than 50% control in a region means that your patrols are able to detect passing enemy armies and can even prevent retreat if a battle ensued!
2. Supply mode: Very handy to know what regions will block the passage of supply and where your main stockpiles are.
3. Loyalty mode: Shows where there are rebel or pro-union populations. Loyalty is a very important aspect of the war (more later...), influencing partisans, production and fog of war.
4. Objectives mode: Show regions where the city is an objective or earns you victory points.
5. States mode: Show US States, each with it's own color.
6. Department mode: Show US Departments (Grand Regions/Districts) each with a color.
Partially zoomed-out view (50%) showing the supply filter. The regions where Union supply can enter are shown in green. The crates indicate the size of the stockpile in a city.
