This can make download time feel shorter, but it also increases the file size so there’s some give and take. InterlacedĬheck the box so that a low-resolution version of the GIF appears in the browser while waiting for the full image to download. Click the Matte color swatch and use the color picker to choose your color. What if you want to put a color behind the GIF and fill the transparent spots? Un-check the transparency box and choose a matte color to go behind it. Transparency and MatteĬheck the transparency box to make fully transparent pixels transparent. You can change it to Pattern for a halftone-like square pattern or Noise. The random pattern is less noticeable in most GIFs. Diffusionĭiffusion is the default option under the dithering method. Restrictive provides the best visual optimization for web use but can make the file size bigger, which isn’t always ideal. It works when most of the colors in the image are concentrated around a single area of the color spectrum.
Perceptual builds a custom color table that emphasizes color that the human eye prioritizes.Īdaptive changes with the image. Selective favors broad swaths of color and preserves web colors and is the best option most of the time. Selective is the default option but you can also choose Perceptual, Adaptive, Restrictive, or Custom.
