hard-code z test because it's difficult get it set correctly on leaves in from in Lua

stepmania/src/FadingBanner.cpp

@@ -30,6 +30,11 @@ FadingBanner::FadingBanner()
 	{
 		m_Banner[i].SetName( "Banner" );
 		ActorUtil::LoadAllCommandsAndOnCommand( m_Banner[i], "FadingBanner" );
+
+		/* TODO: Move this into Lua.  Ideally, there should be a ZTEST_NO_CHANGE that 
+		 * would let a ztest command on an ActorFrame propagate to all children. */
+		m_Banner[i].SetZTestMode( ZTEST_WRITE_ON_FAIL );
+
 		this->AddChild( &m_Banner[i] );
 	}
 }