add LineHighlightChangeCommands

stepmania/Themes/default/metrics.ini

@@ -2820,6 +2820,8 @@ PageX=320
 PageY=240
 PageOnCommand=
 LineHighlightOnCommand=
+LineHighlightChangeCommand=
+LineHighlightChangeToExitCommand=
 ColorSelected=1,1,1,1		// normal
 ColorNotSelected=0.5,0.5,0.5,1	// grayed
 NumShownItems=10

stepmania/src/ScreenOptions.cpp

@@ -590,6 +590,9 @@ void ScreenOptions::TweenCursor( PlayerNumber player_no )
 	highlight.TweenBarWidth( iWidth );
 	highlight.SetXY( (float)iX, (float)iY );
 
+	UtilCommand( m_sprLineHighlight[player_no], "ScreenOptions", "Change" );
+	if( m_Rows[iCurRow]->Type == Row::ROW_EXIT )
+		UtilCommand( m_sprLineHighlight[player_no], "ScreenOptions", "ChangeToExit" );
 	m_sprLineHighlight[player_no].SetY( (float)iY );
 }