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manifest.json

{
  "manifest_version": 2,
  "name": "YouTube Zen",
  "version": "2.0",
  "description": "Hides distracting elements in YouTube",
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/youtube-zen-32.png",
    "default_title": "YouTube Zen"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "youtube_zen.js"
      ]
    }
  ]
}