Meaning of the colors and letters in the following list

[Guest]

Hey all,

In the following list that I saw coming by in of the videos, there are some trades in green, some in red, and some in black.

My first question is what is the meaning of giving different colours to the different trades?

My second question is what is the meaning of the letters in the last column (the A, E, N, F etc)?

[Abiel 475]

Colors are configurable, on your T&S right click > Config. Colors mean price in relation to bid / ask

Letters mean Sale Condition.