Pls fix the black font on black background bug (this bug exists since S1)

HanXin55

Pls fix the black font on black background bug, which make player unable to read what is written. This bug already exists since S1. After so many years, I dont know wheter Heyshell know but you dont care to fix it or never realized it. But both are equally sucks. 2 years I've been playing this game and I still have to quit and re-open game in Android or refresh my browser in computer to fix this intermittent bug. It happens a lot and it is really annoying. Pls don't just put new feature into the game, but fix the bug as wel. Below are the screenshots of the black font on black backgound.