public async Task TestTweenSaturation() { var resolver = ObjectTests.GetResolver(); resolver.Build(); AGSSprite sprite = new AGSSprite (resolver, null); sprite.Tint = Color.FromHsla(100, 1f, 0.5f, 100); //Lightness must be different than 1 for saturation to change await sprite.TweenSaturation(0f, 1f, Ease.QuadIn).Task; Assert.IsTrue(Math.Abs(sprite.Tint.GetSaturation()) < 0.0001f); await sprite.TweenSaturation(1f, 1f).Task; Assert.IsTrue(Math.Abs(1f - sprite.Tint.GetSaturation()) < 0.0001f); }