Examine source code of JWT Tracker Extension

{
  "manifest_version": 2,
  "name": "JWT Tracker Extension",
  "description": "Extension to track and show JWT and SAML data",
  "version": "1.3",
  "author": "dre2901@gmail.com",
  "homepage_url": "https://github.com/dre2901/jwt-tracker",
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": false
  },
  "background": {
    "scripts": [
      "service-worker.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6824a0c9-498a-4343-be08-3a3e5bfc3bba}",
      "strict_min_version": "42.0"
    }
  },
  "incognito": "spanning",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/16.png",
      "32": "icons/32.png",
      "48": "icons/48.png"
    },
    "default_title": "Show JWT",
    "default_popup": "popup/popup.html"
  },
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "permissions": [
    "storage",
    "webRequest",
    "activeTab"
  ],
  "optional_permissions": [
    "<all_urls>"
  ]
}