Examine source code of Quiche Reader

{
  "manifest_version": 2,
  "name": "Quiche Reader",
  "version": "1.1",
  "description": "Save web pages to Quiche Reader.",
  "icons": {
    "48": "icons/default.svg",
    "96": "icons/default.svg"
  },
  "browser_action": {
    "default_title": "Save to Quiche Reader",
    "default_icon": "icons/toolbar-dark.svg",
    "theme_icons": [
      {
        "light": "icons/toolbar.svg",
        "dark": "icons/toolbar-dark.svg",
        "size": 16
      },
      {
        "light": "icons/toolbar.svg",
        "dark": "icons/toolbar-dark.svg",
        "size": 32
      }
    ]
  },
  "background": {
    "scripts": [
      "auth.js",
      "cloudkiterror.js",
      "cloudkit.js",
      "queue.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://auth.readingqueue.app/*"
      ],
      "js": [
        "auth-notify.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "styles.css"
      ],
      "js": [
        "handlebars.js",
        "overlay.js",
        "overlay-setup.js"
      ]
    }
  ],
  "permissions": [
    "menus",
    "tabs",
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9d16943a-c663-42dc-a1bd-a90dd21ea229}"
    }
  }
}