Chrome Simple Keyboard - A virtual keyboard

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Chrome Simple Keyboard - A virtual keyboard",
  "version": "0.4.6",
  "description": "A native virtual keyboard based on the simple-keyboard package",
  "icons": {
    "128": "icons/icon_128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "contentScript.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_title": "Chrome Simple Keyboard"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_idle",
      "js": [
        "contentScript.js"
      ]
    }
  ]
}