Tetris Cubes on Chrome

Tetris Cubes - Drop down the falling blocks and complete horizontal lines.

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "__MSG_AppName__",
  "version": "1.0.0",
  "version_name": "1.0.0",
  "action": {
    "default_icon": {
      "16": "img/16x16.png",
      "48": "img/48x48.png",
      "128": "img/128x128.png",
      "256": "img/256x256.png"
    },
    "default_title": "Click to open the popup",
    "default_popup": "index.html"
  },
  "background": {
    "service_worker": "update.js"
  },
  "offline_enabled": true,
  "default_locale": "en",
  "description": "__MSG_AppDesc__",
  "icons": {
    "16": "img/16x16.png",
    "48": "img/48x48.png",
    "128": "img/128x128.png",
    "256": "img/256x256.png"
  },
  "options_page": "index.html",
  "homepage_url": "https://tetriscubes.w3technic.com"
}