Touch the Tile

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Touch the Tile",
  "description": "TTT(Touch the Tile)",
  "version": "4.0",
  "manifest_version": 2,
  "app": {
    "background": {
      "scripts": [
        "background.js"
      ]
    }
  },
  "icons": {
    "16": "icon_16.png",
    "128": "icon_128.png"
  }
}