Examine source code of Plusdede Link Sort

{
  "manifest_version": 2,
  "name": "Plusdede Link Sort",
  "short_name": "PLS",
  "description": "Plusdede Link Sorter",
  "version": "1.2resigned1",
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "PLS",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "css": [
        "plusdedeLinkSort.css"
      ],
      "js": [
        "linkSort.js"
      ],
      "matches": [
        "https://www.plusdede.com/*"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "storage"
  ],
  "web_accessible_resources": [
    "plusdedeLinkSort.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6febe3f2-0275-4bf3-9f9c-bfcdd53b5760}"
    }
  }
}