wether this is a bug or a fault in the mirc.hlp i dont know, but from helpfile:
$window
sbcolor returns the switchbar highlight color
this is incorrect, it returns the highlight colortype. it says it supposed to return 0 1 2 3, but instead it returns $null message highlight event
a small fix?
oh, and while your at it, its "highlight" not "hilight" in -g[N] explanation