[DeMoX]

pawn Код:

format(string, sizeof(string), "AdmCmd: %s {FFFFFF}has {FF0000}issued a Server Restart, {00FF00}it will occur in 30 seconds. Be sure to /park your vehicle(s)!", RPN(playerid));
SendClientMessageToAll(COLOR_LIGHTRED, string);

Just use it, like when you're using SendClientMessage.
Note: If you want to use a GameTextForPlayer you must use:
~g~, ~r~ ...etc