Hi Anton,
I understand it to be the market depth at close of trading (which was 25.5c)
Green- all the buys starting in the middle at 25.5c & going down to 19c the left.
Red- all the sells to the right of this going up in price to 32c.
I presume he's drawing your attention to the big wall of 16 buyers at 25c for about 1.15 Million shares.