Examine source code of Pincone

{
  "manifest_version": 2,
  "name": "Pincone",
  "description": "Share links and knowledge, privately or with a team.",
  "version": "2.1.0",
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "browser_action": {},
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "popup.html",
    "popup.js"
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4412e534-f05e-4548-8b3a-0a2b7efd9c1c}"
    }
  },
  "permissions": [
    "contextMenus",
    "identity",
    "http://localhost:3000/graphql",
    "<all_urls>",
    "storage"
  ]
}