Examine source code of Show comic title-text

{
  "manifest_version": 2,
  "name": "Show comic title-text",
  "version": "7resigned1",
  "author": "Peter Simonyi",
  "homepage_url": "https://github.com/psimonyi/show-titletext",
  "description": "Display the title-text below comic pages",
  "applications": {
    "gecko": {
      "id": "show-titletext@ns.petersimonyi.ca"
    }
  },
  "permissions": [
    "<all_urls>",
    "menus",
    "storage",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "page_action": {
    "default_icon": {
      "16": "action-icon-16.png",
      "32": "action-icon-32.png"
    },
    "default_title": "Automatically set a title-text rule"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": false
  }
}