roulette in metrics, not code

stepmania/Themes/default/metrics.ini

@@ -1963,7 +1963,7 @@ SectionY=0
 SectionOnCommand=zoom,1.0;maxwidth,200
 RouletteX=-30
 RouletteY=0
-RouletteOnCommand=Zoom,1.0
+RouletteOnCommand=Zoom,1.0;rainbow,true
 CourseNameX=-120
 CourseNameY=0
 CourseNameOnCommand=shadowlength,0;zoom,1.3;horizAlign,left;maxwidth,200

stepmania/src/MusicWheelItem.cpp

@@ -75,7 +75,6 @@ MusicWheelItem::MusicWheelItem( RString sType ):
 	m_textRoulette.LoadFromFont( THEME->GetPathF(sType,"roulette") );
 	ActorUtil::SetXY( m_textRoulette, "MusicWheelItem" );
 	m_textRoulette.SetShadowLength( 0 );
-	m_textRoulette.SetRainbow( true );
 	m_textRoulette.PlayCommand( "On" );
 	this->AddChild( &m_textRoulette );