Apng and gif files, all transparent with alpha channel. Gif files can be added to the skin and also into a container with colored background. The packages includes apng and gif files, many sizes, gif files with 2 different speeds. Apngs have different fps. gif files are available with 1 loop or endless loops. Choose which fits and works best for your tour.
Watch short instruction in Youtube if you like to add it to the skin: https://youtu.be/Co_d1BVaico