This script adds a volume indicator that is normalized by SMA(50) by default. This will help you easily see whether the volume is _actually_ high or not. It also highlights when volume is exceeding the average by making the column a darker color.
Caveats:
* This changes the volume into a percentage, so don't use this number for calculations
Hints:
* Make sure to set your "bottom margin" to 0% or the volume chart will appear to be floating above the bottom