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Doing so would increase your GIF size, but it helps to correct your buggy GIFs, understand their frames better, or re-optimize them later. Undo optimizations: This operation draws a complete view of the animation up to that point/frame (instead of each frame containing only the overlaid changes).Best for: Use if your GIF has a lot of static background areas that do not change while animating such as, GIF of a screen recording.Use the Fuzz Factor settings under this option to match “similar” colors. The result is large areas of transparency that compress better (compared to a mix of different colored pixels).
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Optimize transparency: If your GIF is an overlaid animation that is repeating pixels that are already being displayed, you can replace those repeating color pixels with transparency.Best for: Use if each frame of your GIF has similar colors.So you can potentially save up to 256 X 3 = 758 bytes per frame by using a single color table. As we mentioned, a color table can have up to 256 colors, and each color is 3 bytes. This option will instead force the GIF to use a single global color table. Use a single color table: Usually, each frame of a GIF file has its own separate color table.Best for: Use if your frames have a limited number of colors.However, it may also cause animation artifacts. Naturally, this will produce better-looking GIFs at the expense of bigger file size. Reduce colors + dither: Using the dither option will force the algorithm to approximate the missing colors using combinations of colors.You can choose to reduce colors up to just 2 colors. Reducing the number of colors in colormap can reduce GIF file size. Reduce colors: GIF files support up to 256 different colors.
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