Parameters for the new icons?

[EJGr.Ost_Caspar]

From the guide (yes, really!):

Additional icon options

Three more options were added for mp_dotrange command: ALTICON, ALTCOLOR,
ALTSYMBOL.
ALTICON sets the maximum distance when the icon will be shown. ALTCOLOR sets the color of
the icon. ALTSYMBOL sets the one character symbol which will be shown as icon. These
settings only kick in when old style icons are not shown, i.e. when distance of COLOR, TYPE,
NAME, ID and RANGE are smaller than the distance to the aircraft.
Example:
mp_dotrange FRIENDLY DOT 25.0 COLOR 0.1 RANGE 0.1 TYPE 1.0 ID 0.1 NAME 0.1 ALTICON
2.5 ALTSYMBOL + ALTCOLOR 3
This will display a symbol "+" above the aircraft between 1.0 and 2.5 km in color 3 (green).