I would like to make it just like the bitcoin price charts are displayed. They list the buy/sell prices as cumulative instead of individual. This makes the graph 1000% more readable and gives a very good idea of the market at a glance.
This shouldn't be hard to implement because it's just the way it is displayed.
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http://image.prntscr.com/image/30f3554c93f74e2b8f3242254ed15484.png
-Captain D