An interesting and intriguing new feature is Volume Delta Chart.
Price action that takes place in Level2 is very different from what you can see on a simple historical bar. Trades taking place on the bid or the ask have a great importance and a lot of insight can be extracted from this kind of action. Now with Volume Delta Chart you can see how many trades were done at the ask and the bid on each price level within a bar. This simply allows the trader to see “within” the price bar to provide more transparency over a traditional bar: