Examine source code of Highbrighter

{
  "author": "Jahn08",
  "background": {
    "page": "views/background-loader.html"
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Highbrighter",
    "default_popup": "views/popup.html",
    "default_icon": "icons/highlighter48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "highlighter@mail.com",
      "strict_min_version": "60.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content_scripts/lzwCompressor.js",
        "content_scripts/browserAPI.js",
        "content_scripts/arrayExtension.js",
        "content_scripts/browserStorage.js",
        "content_scripts/pageInfo.js",
        "content_scripts/menuMessageEvent.js",
        "content_scripts/messageReceiver.js",
        "content_scripts/rangeBase.js",
        "content_scripts/rangeMarker.js",
        "content_scripts/rangeNote.js",
        "content_scripts/messageControl.js",
        "content_scripts/shortcut.js",
        "content_scripts/index.js"
      ],
      "css": [
        "content/index.css"
      ]
    }
  ],
  "default_locale": "en",
  "description": "__MSG_description__",
  "homepage_url": "https://addons.mozilla.org/en-GB/firefox/addon/highbrighter",
  "icons": {
    "48": "icons/highlighter48.png",
    "96": "icons/highlighter96.png"
  },
  "manifest_version": 2,
  "name": "Highbrighter",
  "omnibox": {
    "keyword": "highbrighter"
  },
  "options_ui": {
    "page": "views/preferences.html",
    "browser_style": true,
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage",
    "unlimitedStorage"
  ],
  "version": "1.2.1"
}