Examine source code of Speed Reading Mode

{
  "manifest_version": 2,
  "name": "Speed Reading Mode",
  "version": "0.6resigned1",
  "description": "Improve reading speed by removing distraction and the need to move our eyes",
  "icons": {
    "48": "icons/speed-reading-black-512.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup/index.html",
    "default_icon": {
      "512": "icons/speed-reading-black-512.png"
    },
    "theme_icons": [
      {
        "light": "icons/speed-reading-white-512.png",
        "dark": "icons/speed-reading-black-512.png",
        "size": 512
      }
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "readability.js",
        "parser.js",
        "speed-read.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "fonts/slabo 27px/Slabo27px-Regular.ttf"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{514ea960-b79e-48e7-aed9-3b9458a04874}"
    }
  }
}