Examine source code of Spigot Update Templates

{
  "name": "Spigot Update Templates",
  "version": "1.5.1resigned1",
  "description": "Save various templates to make updates look better and less tedious to setup!",
  "permissions": [
    "https://www.spigotmc.org/*",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.spigotmc.org/resources/*/add-version",
        "https://www.spigotmc.org/resources/*/edit",
        "https://www.spigotmc.org/resources/add"
      ],
      "js": [
        "widgets/templateStorage.js",
        "templateHTML.js",
        "widgets/visual.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": "icons/icon16.png",
    "default_popup": "popup/popup.html"
  },
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{9eec7f66-dfa4-4b40-8753-39ebdf6cf622}"
    }
  }
}