Live Texture Stitching Example 1:3

{
    "id": "blocks/concrete_rainbow3",
    "textures": {
        "concretes": [
            "blocks/white_concrete",
            "blocks/orange_concrete",
            "blocks/magenta_concrete",
            "blocks/light_blue_concrete",
            "blocks/yellow_concrete",
            "blocks/lime_concrete",
            "blocks/pink_concrete",
            "blocks/gray_concrete",
            "blocks/light_gray_concrete",
            "blocks/cyan_concrete",
            "blocks/purple_concrete",
            "blocks/blue_concrete",
            "blocks/brown_concrete",
            "blocks/green_concrete",
            "blocks/red_concrete",
            "blocks/black_concrete"
        ]
    },
    "animation": {
        "interpolate": true,
        "frametime": 4,
        "frames": [
            {
                "texture": "#concretes",
                "indices": [
                    14, 1, 4, 13, 11
                ]
            },
            {
                "texture": "#concretes",
                "index": 10,
                "time": 6
            },
            {
                "texture": "#concretes",
                "index": 2,
                "time": 8
            }
        ]
    }
}