I use something similar, it's like DDR style.
CODE
$if(%isplaying%,
$puts(DDR_mode,1)
$ifequal($get(DDR_mode),1,
%bitrate% kbps
// Colors
$puts(grey,$rgb(135,135,135))
$puts(white,$rgb(255,255,255))
$puts(yellow,$rgb(235,235,0))
$puts(orange,$rgb(255,150,0))
$puts(green,$rgb(0,200,0))
$puts(blue,$rgb(50,150,230))
$puts(purple,$rgb(200,0,200))
$rgb(100,100,100)
$ifgreater(%bitrate%,300,$get(white) Ridiculous $get(grey),
$ifgreater(%bitrate%,250,$get(yellow) Marvelous $get(grey),
$ifgreater(%bitrate%,180,$get(orange) Perfect $get(grey),
$ifgreater(%bitrate%,150,$get(green) Great $get(grey),
$ifgreater(%bitrate%,120,$get(blue) Good$get(grey),
$get(purple) Boo $get(grey)
))))) quality,%bitrate% kbps))