gltf_micromap_results.json (Source)

{
"meshes":[
{
  "name":"Plane.001",
  "primitives":[
    {
      "extensions":{
        "NONE_opacity_micromap":{
          "level":2,
          "mode":"4state",
          "micromaps":[
            "0b00101010000000001010101010101000",
            "0b00000000100010101010100000100000"
          ]
        }
      }
    }
  ]
}
]
}