Visual Change

{
  "variation": "<string>",
  "description": "<string>",
  "css": "<string>",
  "js": "<string>",
  "domMutations": [
    {
      "selector": "<string>",
      "attribute": "<string>",
      "value": "<string>",
      "parentSelector": "<string>",
      "insertBeforeSelector": "<string>"
    }
  ]
}