Piano Online

Piano Online: Play piano with your friends!
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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Piano Online",
  "description": "Piano Online: Play piano with your friends!",
  "version": "0.1.0",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon16.png"
    },
    "default_title": "Piano Online"
  },
  "background": {
    "scripts": [
      "script.js"
    ]
  }
}