This is Mrtools's PA (Phase Accumulation) WPR Smooth which was made just a few years ago so it comes with (newer drop down box) Multi-timeframe + Interpolation & more.

As explained by Mrtools:
This is a pa adaptive wpr smooth with the new added price options, the indicator can be used as histogram version or line version,, the wpr period(pafilter,pacycle) and wpr ma period (mafilter,macycle) are both controlled by phase accumulation,