Live Texture Stitching Example 1:1

{
    "id": "blocks/concrete_rainbow1",
    "textures": {
        "red": "blocks/red_concrete",
        "orange": "blocks/orange_concrete",
        "yellow": "blocks/yellow_concrete",
        "green": "blocks/green_concrete",
        "blue": "blocks/blue_concrete",
        "purple": "blocks/purple_concrete",
        "magenta": "blocks/magenta_concrete"
    },
    "animation": {
        "interpolate": true,
        "frametime": 4,
        "frames": [
            "#red",
            "#orange",
            "#yellow",
            "#green",
            "#blue",
            "#purple",
            "#magenta"
        ]
    }
}