Theory :
The way how this WPR is smoothed is described here : Smoothed WPR
In order to enable simpler usage of that indicator, this version is adding floating levels. You can use, depending on those floating levels, 3 modes of color changes
Also, this version is displaying a sort of support / resistance levels on the main chart when the signal of the wpr changes
Usage :
You can use color changes as signals

Smoothed WPR with floating levels
Smoothed WPR with floating levels
Smoothed WPR
Smoothed Williams percent range