How to set Wheel color

[JungYongWook]

Hello,
I use the Android studio,
I added compile
compile 'com.github.shchurov:horizontalwheelview:0.9.5'
to the build.gradle file.

But because of the applied background color The color of the wheel is blue, not similar to orange.
void setActiveColor(int color)
I think I need to use this code, but I need help with what to do.