Thanks for all the interest! Please let me know if you find it useful :)
Updates:
-added the option to use SMA, EMA, VWMA and FLAT (like a regular volume profile)
-re-organized some settings and made them timeframe-independent, so the graph remains consistent when changing timeframes
Troubleshooting:
-if you are getting too much brightness, or nothing is showing up, its likely that you need to adjust min and max volume
-the default ma setting is 20 days, this is the same as 20 periods on a 1d chart, 40 periods on a 12h chart, and 480 periods on a 1h chart (24x20)
-good luck! i'ts still slow.