It's a no jet player type that looks like and can be edited like an @-Team player.
Viewing the coordinates could be after saying /view shows the pixel coordinates like (a-1) (b-2) ECT
Then you can recolor the pixels by saying /edit A-1 C-1 (If RGB is possible) C-R255 G255 B255 (blue for coordinates red for color)
(you are limited to the server's color set if custom colors aren't possible)