About Attack Frame

When pointing to a certain target, a flashing bright red frame appeared showing who is being attacked.

However, the red line is too thick, it blocks my vision around the target. Sometimes, I cannot aim at those at the behind. Besides, it flashes all the time, it causes a heavy burden to my eyes and nerves.

I hope that the thickness of it can be adjusted or even deleted .Players can choose between flashing or not flashing.