An animated sticker, or APNG, is an animated image with the qualities of a .png file instead of a .gif file. The APNG export options are shown in the following screenshot:
These options are the same as the .gif options detailed below, with two additional options added at the bottom of the window. The Delete blank spaces option deletes any blank areas that are not drawn, such as outside of the frame area. The Color reduction option reduces the color palette to 256 colors (transparent + 255 colors), which can reduce the file size but may make some colors display in a way that was not intended.
