public int Contrast {get; set;}

await QueuedTask.Run(() =>
{
  // Get the colorizer from the raster layer.
  CIMRasterColorizer rasterColorizer = rasterLayer.GetColorizer();
  // Update raster colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the raster layer with the changed colorizer.
  rasterLayer.SetColorizer(rasterColorizer);
});

await QueuedTask.Run(() =>
{
  // Get the image sub-layer from the mosaic layer.
  ImageMosaicSubLayer mosaicImageSubLayer = mosaicLayer.GetImageLayer();
  // Get the colorizer from the image sub-layer.
  CIMRasterColorizer rasterColorizer = mosaicImageSubLayer.GetColorizer();
  // Update raster colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the image sub-layer with the changed colorizer.
  mosaicImageSubLayer.SetColorizer(rasterColorizer);
});

await QueuedTask.Run(() =>
{
  // Get the colorizer from the image service layer.
  CIMRasterColorizer rasterColorizer = isLayer.GetColorizer();
  // Update the colorizer properties.
  rasterColorizer.Brightness = 10;
  rasterColorizer.Contrast = -5;
  rasterColorizer.ResamplingType = RasterResamplingType.NearestNeighbor;
  // Update the image service layer with the changed colorizer.
  isLayer.SetColorizer(rasterColorizer);
});