The green are the buy orders (bids), and the red are the sell orders (asks). Below, on the blue line, says the price. The only thing that means is that, at $ 0.20, the Steem will have to sell much more than what is being purchased to raise the price. This can translate into a slight fall in short-term prices, as we are seeing, below $ 0.20.

Steem is currently valued at $ 0.16 according to CMC, the next barrier to overcome will be $ 0.20.