We draw the tiles in this image by composing two images (a spectrum and an orchid) using the different blend modes supported by GcBitmapGraphics. The orchid image is drawn using BlendMode.Normal, then the current blend mode on GcBitmapGraphics is set to one of the supported blend modes, and the spectrum image is drawn using it. The name of the used blend mode is shown below each tile.Note that the blend mode set on the graphics affects not only images but any drawing on this graphics.
