02A8: create_marker  236??  28? at  396??  400??  404??

the 236?? is the marker ID

and got all the alternative marker 'types' the 28? in the above code, Just change it to one of the following:
0  Small purple dot
1  Large player type icon
2  Small arrow
3  The N Icon (North on the Map)
4  The A Icon
5  The B Icon
6  The C Icon
7  The D Icon
8  The K Icon
9  The L Icon
10  The P Icon
11  The Spade Icon
12  The Anchor Icon
13  The Tree (Malabu Club) Icon
14  A Funny sort of splat icon, not sure what it is meant to be
15  A Clapper board (used for the film studio)
16  The Gun Icon
17  The Voodoo Icon
18  The Hammer Icon
19  The Tape Icon (Save Game Icon)
20  The Pink P Icon (Pole Position Club Icon)
21  The Cherry Icon (Cherry Poppers Icon)
22  The Yellow K Icon (Kuffman Cabs Icon)
23  The Skull Icon (Bikers Club Icon)
24  The Dollar $ Icon (Printworks Icon)
25  No Icon
26  The Sun Icon (Sunshine Autos Icon)
27  The Re-spray Icon
28  The T Shirt Icon
29  The V Icon (Tommys Home Icon)
30  The Phone Icon
31  A Yellow W Icon (I have not seen before)
32  A Yellow Flag or Ice-cream (I have not seen before)
33  Some Sort of Fish Icon (I have not seen before)
34  Some sort of red symbol
35  Red V on a Black background
36  Blue V on a White background with some red @ the bottom
37  A Simple drawing of the devil?
38  A Red Heart Icon
39  Red W on a green background