Examine source code of Beginner Running Guide

{
  "manifest_version": 2,
  "name": "Beginner Running Guide",
  "version": "1.0",
  "description": "A helpful guide for beginners to learn about running, breathing techniques, and exercises.",
  "permissions": [],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "images/beginrun-logo.png"
    }
  },
  "icons": {
    "128": "images/beginrun-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b7e7e1e5-71f9-43e4-a2dc-fbd23f96897b}"
    }
  }
}