Hello... had an idea last night for the fog of war when someone is spectating. I am always seeing casters switch between player x and player y to see what they can and can't see which looks annoying to have to do really.... So, why not just subtlely tint what player x can see in the hue of player x's colour and tint what player y can see in the hue of player y's colour! In practice this might look **** and might not even work very well for all colours but hey ho just an idea.
Difficult to say without seeing it, but I'd say that this probably won't look very good. Even if it doesn't look that bad, it'll still look bad and screw up the visuals and overall beauty that is Planetary Annihilation – which is bad for casters. I'd prefer that we just get keyboard shortcuts. Even then, I like being able to full on toggle. This feature also wouldn't work at all for color blind people.