Examine source code of Deep Thought Tabs

{
  "manifest_version": 2,
  "name": "Deep Thought Tabs",
  "description": "Adds funny, profound observations (with images) to newly opened empty tabs.",
  "version": "1.9.7resigned1",
  "author": "TheCodeArtist",
  "homepage_url": "https://github.com/TheCodeArtist/deep-thought-tabs",
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "background": {
    "scripts": [
      "deepThoughts.js"
    ]
  },
  "chrome_url_overrides": {
    "newtab": "deepThoughts.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8e952174-ad25-426d-aff1-865971881656}"
    }
  }
}