There are hundreds if not thousands of color variations, and depending on the device, each of them can be reproduced differently. Few, if any, devices guarantee that the color representation will be accurate and will match every color value of the original image, therefore there are different techniques that approximate colors. One of the ways to produce the color value similar to the original one is called dithering. Dithering simulates a color by alternating two or more colors in a pattern. For example, different shades of pink can be simulated by alternating different combinations of red and white. It is considered a pretty good method of color approximation achieving a pretty close color value to the original image. When converting images to some image formats (like PCX or MNG), dithering is one of the options available to the users of ImageConverter Plus. This option is only available if the value of color depth equal to option is 1, 4 or 8 bpp. Dithering is also used to create a wide variety of patterns for use as backgrounds, fills and shading as well as for creating anti-aliasing effects. Please note that when dithering is applied, the resulting image file is likely to be larger in size.