Large inventory icons in Minecraft

{   "textures": {
        "all": "items/texture"
    },
    "display": {
        "gui": {
            "translation": [-100, 100, 0],
            "scale":[4, 4, 4]
        },
        "ground": {"scale":[0, 0, 0]},
        "fixed": {"scale":[0, 0, 0]},
        "thirdperson_righthand": {"scale": [0, 0, 0]},
        "firstperson_righthand": {"scale": [0, 0, 0]},
        "firstperson_lefthand": {"scale": [0, 0, 0]}
    },
    "elements": [
        {   "from": [-16, -16, 32],
            "to": [32, 32, 32],
            "faces": {
                "south": {"uv":[0, 0, 16, 16], "texture": "#all"}
            }
        }
    ]
}