Adds the mass of rings around a body to it. This adds a tiny bit of realism to the game and doesn't affect that much. You can also configure this mod's effect on your planets using some variables.
To configure RingMassAdder, use rmaRingPercent and rmaRingDensity in Body/Rings/Ring.
rmaRingPercent is what percent of a ring's tile is actually filled. This is expressed in decimal and can be found by looking at your ring texture and dividing the amount of filled pixels by total pixels on a specific x coordinate (or you can eyeball it if you want). The default value is 1, assuming a fully filled ring.
rmaRingDensity is the average density of material the ring consists of and it is expressed in kilograms per meter squared, kg/m2. The default value is 1000 kg/m2.