Examine source code of one-tap-schedule

{
  "manifest_version": 2,
  "name": "one-tap-schedule",
  "description": "chrome extension for quickly scheduling",
  "version": "0.0.2",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "One Tap Schedule",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "css": [
        "content-scripts/content.css"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ff40d649-ffc9-49ee-bed7-24144d2ed0b2}"
    }
  }
}