This specific naming convention is common in collections (like "test 838") where users upload high-definition (1080p FHD) clips to be used as animated backgrounds with these enhanced scripts applied. Steam Workshop::test 838
In many anime-themed wallpapers on the Steam Workshop, "deep features" allow users to toggle specific elements like rain effects, fluctuating clouds, or audio visualizers that react to music. gateanime-com-sxf-15-1080fhd-mp4
A technique where the software uses a "depth map" to create a 3D illusion. As you move your mouse, different layers of the anime scene shift at different speeds, making the 2D image appear to have physical depth. This specific naming convention is common in collections