Help on smooth system progress bar

So, I'm using Smooth System Progress Bar to make my progress bar smoother. It works but the problem is that even if I change the color, it doesn't show that color. Sometimes it changes but most of the time.. No. I think another app is giving a problem with the app but I'm not sure. So what could be the problem?

[emoji137]Is that a feature on some phone, or an app you’ve downloaded?

Its an app for rooted device to use with Exposed.