Detecting Phara

behind wall:

The average RGB value of this "look through wall" mode is (54, 158, 198), or in hex, 0x369EC6

The "FROSTBITE" skin is the most similar one that match this color, and the "OVERWATCH 1" default skin is also quite a good match

"FROSTBITE" filtered with threshold 30

"OVERWATCH 1" filtered with threshold 30

ROI masks: