Examine source code of UniverseView Extension

{
  "name": "UniverseView Extension",
  "short_name": "UniverseView",
  "version": "4.2.1",
  "version_name": "4.2.1",
  "description": "UniverseView is a fast and fun OGame add-on. Find planets everywhere and make the way you play OGame more efficient and effective!",
  "homepage_url": "https://universeview.be",
  "manifest_version": 2,
  "content_scripts": [
    {
      "js": [
        "chrome/content/scripts/universeview.js"
      ],
      "css": [
        "chrome/content/css/stylesheet.css",
        "chrome/content/css/skin.css"
      ],
      "matches": [
        "*://*.ogame.gameforge.com/game/index.php*"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage",
    "*://*.ogame.gameforge.com/game/index.php*",
    "*://*universeview.be/*",
    "management",
    "notifications",
    "alarms",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "logo-16.png",
    "48": "logo-48.png",
    "128": "logo-128.png"
  },
  "applications": {
    "gecko": {
      "id": "firefox@universeview.ext",
      "strict_min_version": "54.0"
    }
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "logo-48.png",
    "default_title": "UniverseView",
    "default_popup": "chrome/popup/index.html"
  },
  "web_accessible_resources": [
    "chrome/content/scripts/universeview.js",
    "chrome/content/img/action-buttons.png",
    "chrome/content/img/del_favourite.png",
    "chrome/content/img/fav.png",
    "chrome/content/img/feature-buttons-small.png",
    "chrome/content/img/feature_but.png",
    "chrome/content/img/loader.gif",
    "chrome/content/img/loading.gif",
    "chrome/content/img/menu_header.png",
    "chrome/content/img/menu_icons.png",
    "chrome/content/img/officers.png",
    "chrome/content/img/planet-targets.png",
    "chrome/content/img/quicksearch.gif",
    "chrome/content/img/shield.png",
    "chrome/content/img/spreading_add.gif",
    "chrome/content/img/spreading_but_small.gif",
    "chrome/content/img/spreading-footer.gif",
    "chrome/content/img/spreading-middle.gif",
    "chrome/content/img/sword.png",
    "chrome/content/img/donate.png",
    "chrome/content/img/uv_icon.png",
    "chrome/content/img/missions.jpg",
    "chrome/content/img/dn-default.png",
    "chrome/content/img/dn-type-1.png",
    "chrome/content/img/dn-type-1-h.png",
    "chrome/content/img/dn-type-2.png",
    "chrome/content/img/dn-type-2-h.png",
    "chrome/content/img/dn-type-3.png",
    "chrome/content/img/dn-type-4.png",
    "chrome/content/img/dn-type-5.png",
    "chrome/content/img/dn-type-6.png",
    "chrome/content/img/dn-type-6-h.png",
    "chrome/content/img/dn-type-7.png",
    "chrome/content/img/dn-type-8.png",
    "chrome/content/img/dn-type-9.png",
    "chrome/content/img/dn-type-9-h.png",
    "chrome/content/img/dn-type-15.png",
    "chrome/content/img/box-footer.gif",
    "chrome/content/img/box-middle.gif",
    "chrome/content/img/box-header.gif",
    "chrome/content/img/buttons-blue.gif",
    "chrome/content/img/buttons-all.png",
    "chrome/content/templates/*.html",
    "chrome/content/css/*.css",
    "chrome/popup/*.html",
    "chrome/popup/*.css",
    "chrome/popup/script.js"
  ]
}