Here is a volume indicator from the Waddah Attar Explosion family. I have searched high and low and compared many volume indicators. I have come to the conclusion that this one works the best overall out of all the different variations of this same indicator.
Update IMPROVED – VOLUME INDICATOR
The original volume indicator is specifically called: WAE_Ext
Download it here:
This one has some built in customizations. Here are the settings I have received the best results with: