RGB GIF

Hi,

I'm trying to create GIF per this article - https://teamshineon.zendesk.com/hc/en-us/articles/18959627644433-Show-off-the-colors-of-your-Acrylic-products-with-an-animated-GIF

but it seems that on Canto there are no files with “RGB GIF”, all the files for the acrylic have only one color option and not RGB, can you please check this out?