I saw a Kodi build called Simplify on YouTube. It has a logo with the version number on it in the upper right hand corner. When the main menu first comes up, the logo starts on the left side of the screen, and travels across the screen until it ends up on the upper right corner, where it stays until you leave the page, like if you click on Movies. When you go back to the main page it does the same zipping across the screen thing. It's not really animated, but I didn't know what to call it. It looks like a transparent GIF. You can see it at https://www.youtube.com/watch?v=o_FFvxiYwPA at about 4:10 and again at 5:15. Any ideas how it's done?