Playability/Usability issue with 3.5 dungeons and raids

Not sure where else to put this thread but I always treated usability as bugs before I retired from software engineering.

As an older player like many other folks my age the ability to differentiate similar hues of the same color is decreased. Where this is causing a problem is in the new Baelsar's Wall dungeon and Dun Scaith raid. In several places the boss AOE telegraphs are very close to the color of the floor. Along with the faint outlines it can be hard to see them and determine where their edge is. I would say the Shadow Queen Scathach encounter is the worst one for this. I'm not proposing that they be changed to orange (it's nice to have something different) but they need to have more contrast with the floor or a more definitive outline.