Suggestion: Grayscale AOE Setting Option

Lately, I've been struggling with eyestrain and headaches with the way AOE color markers clash with the colors of environments. So, I'd like to suggest a setting option that would change all AOE markers to a transparent grayscale. Ideally, this grayscale would also desaturate characters and other objects within them to help show your location and that of party members and objects.

When AOEs overlap, the result would be something like this:

https://www.japanpowered.com/media/i...le-example.jpg

While the orange/red markers already overlap like this, the overlap in color opacity isn't always apparent, and the color results sometimes hurt sensitive eyes like mine.