| colors | number | - | - | The number of palette colors. Valid only when palette is: |
| dither | Dither | - | - | The dither type. |
| ditherAmount | number | - | - | The amount of dither. |
| forced | ForcedColors | - | - | The type of colors to force into the color palette. |
| interlaced | boolean | - | - | True if rows should be interlaced/ |
| matte | MatteColor | - | - | The color to use to fill anti-aliased edges adjacent to transparent areas of the image. |
| palette | Palette | - | - | The type of palette to use. |
| preserveExactColors | boolean | - | - | True to protect colors in the image that contain entries in the color table from being dithered. |
| transparency | boolean | - | - | True to preserve transparent areas of the image during conversion to GIF format. |
| typename | string | "GIFSaveOptions" | | |
| - | The class name of the referenced object | | | |
