private async void ImagingTestPage_Loaded(object sender, RoutedEventArgs e)
        {
            var hueLightnessBitmap = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => hueLightnessBitmap.RenderColorPickerHueLightness(1.0));
            hueLightnessImage.Source = hueLightnessBitmap;
            var hueLightnessBitmap2 = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => hueLightnessBitmap2.RenderColorPickerHueLightness(0.5));
            hueLightnessImage2.Source = hueLightnessBitmap2;
            var hueRingBitmap = new WriteableBitmap(512,512);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => hueRingBitmap.RenderColorPickerHueRing());
            hueRingImage.Source = hueRingBitmap;
            hueRingImage2.Source = hueRingBitmap;

            var saturationLightnessBitmap = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => saturationLightnessBitmap.RenderColorPickerSaturationLightnessRect());
            saturationLightnessImage.Source = saturationLightnessBitmap;

            var hueValueBitmap = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => hueValueBitmap.RenderColorPickerHueValue(1.0));
            hueValueImage.Source = hueValueBitmap;
            var hueValueBitmap2 = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => hueValueBitmap2.RenderColorPickerHueValue(0.5));
            hueValueImage2.Source = hueValueBitmap2;

            var saturationValueBitmap = new WriteableBitmap(512, 128);
            await Dispatcher.RunAsync(
                CoreDispatcherPriority.High,
                () => saturationValueBitmap.RenderColorPickerSaturationValueRect());
            saturationValueImage.Source = saturationValueBitmap;
        }