Examine source code of Outline Reader

{
  "name": "Outline Reader",
  "version": "2020.11.10",
  "manifest_version": 2,
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c427ed1-2dcc-491e-b67f-37abb7f79c4d}"
    }
  },
  "web_accessible_resources": [
    "icons/*"
  ],
  "permissions": [
    "tabs",
    "contextMenus",
    "http://*/*",
    "https://*/*",
    "storage",
    "downloads"
  ],
  "icons": {
    "32": "icons/icon.svg",
    "48": "icons/icon.svg",
    "96": "icons/icon.svg",
    "128": "icons/icon.svg"
  },
  "background": {
    "scripts": [
      "background/background.js",
      "background/bib.js"
    ]
  },
  "browser_action": {
    "default_title": "Outline",
    "default_icon": {
      "16": "icons/icon.svg",
      "48": "icons/icon.svg"
    }
  },
  "page_action": {
    "default_icon": {
      "48": "icons/icon.svg",
      "96": "icons/icon.svg"
    },
    "default_title": "Outline"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": false
  }
}