Glad to be of service! ^_^I'm not 100% satisfied with my work — I did miss the decoration on the upper drawer of the vanity in the background, and the lighter colours of Celestia's hair that appear at the left edge towards the end of the animation — but I felt it was a good enough demonstration. I did it in Photoshop, first using the "Indexed Color" mode on selected frames of the animation to create a custom table of mostly hand-picked colours, and then I used that colour table to convert the entire MP4 animation to a GIF. It can be a little labour-intensive, especially for animations with gradients or semi-transparent objects — or both, as in this case.