Shelves GUI
This texture pack completely changes the appearance of interfaces in your game, turning regular inventory slots into stylized bookshelves. In addition, it includes many other improvements: updates outdated textures, adds additional icons in some menus, replaces logos with higher quality HD versions, and makes numerous small but useful interface changes.
There is also a dark version of this pack - "Shelves GUI Dark". You can use it separately; the main version is not required for this.
Important note: some pack features only work with OptiFine installed, however the pack itself is compatible with the regular game version too.
Pack feature: custom loading screens for different dimensions.