I can't see anything that's different. This is the full line I changed in Greb's xml
<element type="Lyrics" xAnchor="Panel.Left" x="1060" y="155" widthDock="Panel.Right" width="-1082" heightDock="y:Panel.Bottom" height="-20" font="Segoe UI" style="Regular" size="9" fg="245,245,245" fg2="10,245,10" >
</element>
and it works fine.
BTW, the 255,255,255 was meant as generic, so you could pick a colour you wanted. I've used the green from the Artist name