Examine source code of Spoiler Destroyler

{
  "manifest_version": 3,
  "name": "Spoiler Destroyler",
  "description": "YouTube spoiler filter",
  "version": "0.4",
  "content_scripts": [
    {
      "matches": [
        "https://*.youtube.com/*"
      ],
      "js": [
        "temp.v3.js"
      ],
      "css": [
        "censor.css"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "initIcon.js"
    ]
  },
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "32": "SD_eye_awake.png",
      "48": "SD_eye_48.png",
      "128": "SD_awake.png"
    }
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "spoiler@destroyler.com"
    }
  }
}