In Chrome and New Edge install Custom Style Script add-on to override Google’s home page background colour
In Custom Style Script select Open options Page and add the following URL and CSS
URL: https://www.google.com/ or country of choice, e.g. google.co.uk, google.de CSS: body { background-color: lightgray !important; } or colour of choice
In Firefox Install the Stylus extension
Go to the Google home page, click the toolbar icon and choose Manage >