Got it!
Code:
 [color:blue]
    if (*: iswm $1) {
      var %i = 1
      while ($nick($chan,%i)) {
        if ($replace($1,:,*) iswm $nick($chan,%i)) {
          var %text = $acronymreplacer($1,%leftborder $thema($nick($chan,%i)) %rightborder,%text)
        }
        inc %i
      }
    }

 [/color]


This instead of the old blue text works for me laugh