Examine source code of EZProxy Redirect Plus

{
  "manifest_version": 2,
  "name": "EZProxy Redirect",
  "description": "Quickly reload pages through your library's EZProxy.",
  "version": "22",
  "author": "Tom Wambold <tom5760@gmail.com>",
  "homepage_url": "https://github.com/tom5760/chrome-ezproxy",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true,
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage",
    "https://libproxy-db.org/proxies.json"
  ],
  "optional_permissions": [
    "clipboardWrite",
    "tabs"
  ],
  "commands": {
    "_execute_browser_action": {
      "description": "Reload the current page through EZProxy."
    }
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    },
    "default_title": "Reload through EZProxy"
  },
  "web_accessible_resources": [
    "options.html"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c8148435-50f4-4396-bb20-bb565efd52ed}"
    }
  }
}