Examine source code of Sleight SEO

{
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": "chrome/content/img/128.png",
    "default_popup": "chrome/content/popup.html",
    "default_title": "SEO Tools"
  },
  "default_locale": "en",
  "description": "__MSG_desc__",
  "icons": {
    "16": "chrome/content/img/16.png",
    "32": "chrome/content/img/32.png",
    "48": "chrome/content/img/48.png",
    "64": "chrome/content/img/64.png",
    "128": "chrome/content/img/128.png"
  },
  "manifest_version": 2,
  "name": "__MSG_name__",
  "options_ui": {
    "page": "chrome/content/options.html",
    "open_in_tab": true
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "clipboardWrite"
  ],
  "short_name": "SEO Tools",
  "version": "2.13",
  "browser_specific_settings": {
    "gecko": {
      "id": "{302e94e4-c4d0-49c0-a4e6-2377fe012082}"
    }
  }
}