Wallpaper Design for the OPPO Find Series. As OPPO's most important product line, the Find series embodies the product mission of OPPO. The wallpapers for the Find X2 series attempt to integrate traditional Chinese ceramic textures to create dynamic wallpapers for this series, combining traditional craftsmanship with future technology. Wallpaper Series Name: Universe in a Cup, which visually represents the brand's wisdom by placing the entire universe within a teacup.