Code:
alias say {
  if ($1 == $null) [color:blue]/echo $color(info) -ati2 $themetext(Error) /say - Insufficient Parameters[/color]
  else if ($show) /msg $active $1- 
  else .msg $active $1-
}

alias msg {
  if ($2 == $null) [color:blue]/echo $color(info) -ai2 $themetext(Error) /msg - Insufficient Parameters[/color]
  else if (Status Window == $active) [color:blue]/echo $color(info) -ati2 $themetext(Error) /msg - Not In A Channel[/color]
  else {
    .raw PRIVMSG $1 $+(:,$2-)
    if ($numtok($1, 44) == 1) {
      [color:red]if ($show) /echo $color(own) -ti2 $1 $themenick($me, $1) $2-[/color]
    }
    else if ($numtok($1, 44) > 1) {
      if ($show) {
        var %chan = 1
        while ($gettok($1, %chan, 44)) {
          [color:Red]/echo $color(own) -ti2 $ifmatch $themenick($me, $ifmatch) $2-[/color]
          /inc %chan
        }
      }
    }
  }
}

What i use.. Change red to your theme style, and blue is just the error messages.

EDIT:
If you want theme nick or theme text letme know. They basically allow me to color the name (change the <>'s, add @, etc) easily by just plugging in the identifier.

-KingTomato