Added function cTab_fnc_draw_userMarkers to replace all the code to draw markers from cTabUserIconList that was essentially the same everywhere (7x the same code).
Greatly improved readability of User Markers by scaling group size icons with the icon so it looks good at all zoom levels.
Done a similar thing with the directional arrow for User Markers so that it is of the same screen length and also scales when icon size is changed.