Perfect addition to Peek mod to theme your shulker boxes with a flat pixelly look 2D-block-texture-pack
This overrides the appearance of items on shulker lids while Peek is enabled, it doesn’t change the look of the blocks or items in the game.
This uses images from https://github.com/ThePotatoKing55/2D-block-texture-pack and https://github.com/Thanos1716/2d-block-item-resourcepack
Which both have the CC-BY-4.0 licence, which means you can reuse the images
themselves as you want, as long as you include the licence and a note to say
who made it.
