Examine source code of Bookmark Link Highlighter

{
  "manifest_version": 2,
  "name": "Bookmark Link Highlighter",
  "version": "2.0",
  "description": "Highlights links on a page that exist in your bookmarks.",
  "icons": {
    "16": "icons/icon-180.svg",
    "19": "icons/icon-180.svg",
    "32": "icons/icon-180.svg",
    "38": "icons/icon-180.svg",
    "48": "icons/icon-180.svg",
    "64": "icons/icon-180.svg",
    "128": "icons/icon-180.svg",
    "180": "icons/icon-180.svg"
  },
  "permissions": [
    "activeTab",
    "bookmarks",
    "contextMenus",
    "downloads",
    "scripting",
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@bookmark-link-highlighter.achavez48",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "persistent": true
  },
  "options_ui": {
    "page": "html/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_popup": "html/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/highlight-bookmarks.js"
      ],
      "run_at": "document_idle"
    }
  ]
}