[solved]How to modify the blue box on the left of Championship

[rewlf2]

As shown on title, I would like to have a way to change its color, or entirely remove it but I cannot find the color code. I'm pretty sure it is installed inside the exe code.

That box normally can't be observed in original lf2, but can be seen once you use some mod which doesn't have a blue theme, like mine. The box is indicated by the yellow arrow.