minecraft-bedrock-json-schemas/source/behavior/entities/format/components/mark_variant.json

{
  "$id": "blockception.minecraft.behavior.entities.minecraft.mark_variant",
  "type": "object",
  "title": "Mark Variant",
  "description": "Additional variant value. Can be used to further differentiate variants.",
  "required": ["value"],
  "properties": {
    "value": {
      "type": "integer",
      "default": 0,
      "description": "The ID of the variant. By convention, 0 is the ID of the base entity",
      "title": "Value"
    }
  },
  "additionalProperties": false
}