Clean Tab with your background

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Clean Tab with your background",
  "version": "3.0.0",
  "description": "Clean tab with your specified background only.",
  "icons": {
    "16": "icons/icon_16.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "author": "Kirill Ulanovskiy",
  "chrome_url_overrides": {
    "newtab": "clean_tab.html"
  },
  "permissions": [
    "storage"
  ],
  "short_name": "Clean Tab",
  "action": {
    "default_icon": {
      "19": "icons/icon_19.png",
      "38": "icons/icon_38.png"
    },
    "default_title": "Clean Tab",
    "default_popup": "popup.html"
  }
}