I know I could bake Lightmaps and then manually do some color correction in Photoshop, but that’s kind of inefficient and would not work for realtime shadows.
I’m not sure about real time shadows, but the shadow colour for lightmaps baked with beast is the same as the Ambient light colour set in the scene (Edit > Render Settings)
That’s definitely interesting. Maybe this is the Ambient Color’s purpose: It defines the color that’s used for shading and shadows.
I’m still interested in doing colored shadows using real time lights though.