This oscillator is derived from Absolute Strength Index, originally developed by Tudor Marcelin (Art Invest).
I made it an oscillator mainly to make it easy to identify the divergences and price-flows. There is not much documentation available online for Absolute Strength Index afaik, lets hope Mr.Tudor comes across this and provides us a detailed writeup :)
Quick testing showed lots of good signals (with minimal lag). Let me know what you guys find in your testing.
Indicator options support coloring bars based on the oscillator/signal values, and a histogram-only mode.