public LabelAtlasColorTest()
        {
            CCLabelAtlas label1 = new CCLabelAtlas("123 Test", "fonts/tuffy_bold_italic-charmap", 48, 64, ' ');
            AddChild(label1, 0, (int)TagSprite.kTagSprite1);
            label1.Position = new CCPoint(10, 100);
            label1.Opacity = 200;

            CCLabelAtlas label2 = new CCLabelAtlas("0123456789", "fonts/tuffy_bold_italic-charmap", 48, 64, ' ');
            AddChild(label2, 0, (int)TagSprite.kTagSprite2);
            label2.Position = new CCPoint(10, 200);
            label2.Color = ccRED;

            CCActionInterval fade = new CCFadeOut  (1.0f);
            CCFiniteTimeAction fade_in = fade.Reverse();
            CCFiniteTimeAction seq = CCSequence.FromActions(fade, fade_in);
            CCAction repeat = new CCRepeatForever ((CCActionInterval)seq);
            label2.RunAction(repeat);

            m_time = 0;

            Schedule(step); //:@selector(step:)];
        }