Red and green have nothing to do with Buys and Sells
Red means the trade price is lower then the previous price... .01 is lower than .15, so the .01 is red
Green means the trade price is higher then the previous price... .05 is higher than .01, so the .05 is green
If the color is white, that means no change in price, just another trade.
FYI - for every transaction, there is a Buy and a Sell. Otherwise, there would NOT be a transaction.
Those who believe without reason... cannot be convinced by reason