Footprint imbalance highlights

[morgan_messina]

Hey team,

First off thank you for the awesome footprint chart tool.  I've been using it a lot and really like it.  

That said, many other footprint charts have a way to show imbalances and highlight them.  The one I frequently use is double zeros on two price levels during the same period.  This is an early indicator of a potential reversal.  I've included an example screenshot of what I'm referring to.  If somehow we could even get alerts on these events, that would be even better so I don't need to sit around just waiting for this to occur.  If you need more screenshots or more of any explanation, I'm happy to share.  Anything to help your feature team make the footprints even more useful (ps, I'm a feature PM myself for Microsoft so figured to reach out).

Thanks!