Unicorn of the Universe

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Unicorn of the Universe",
  "description": "Test your memory with the unicorn of the universe sticker themed memory card game right in your browser.",
  "version": "1.0",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": "icon128.png",
    "icons": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    },
    "default_popup": "hello.html"
  },
  "manifest_version": 2,
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+F",
        "mac": "MacCtrl+Shift+F"
      },
      "description": "Opens hello.html"
    }
  }
}