Taliyah Worked Ground & Colorblind Mode

Just a small technical complaint, but I was playing against a Taliyah without a skin earlier today and I noticed that I could actually see her worked ground. I just barely spotted it, but I saw that it has a light red ring. I had missed it in the past because I'm color deficient and it's almost impossible for me to distinguish against the brown and green ground. This seems like something that should be covered by the colorblind filter. It would be nice to know whether or not she is on worked ground so that I can know how many q's I need to dodge. Even after I noticed it I had to look really closely to see the ring, and I ended up just giving up on trying to see it because it was taking too much of my focus. It's a small thing, but I also feel like it would be an easy fix.