I just added Buy & Sell labels to demonstrate how the VuManChu Swing generates the same exact signals as the Range filter using the exact same settings between the two indicators.
This would only seem plausible if VuManChu Swing runs on the same code as the Range Filter.
It looks likely to be the old version of the Range Filter, where it had only two Inputs, Range Size and Range Period
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.