Solved New Surface 9 Pro

Just got this, and very pleased I am with it, or will be when I sort the 'bits' out.

Mindslip No: 67, or is it 68:

1. When setting up I inadvertently coloured the pages black but cant get them back to standard?
2. I have set browser Chrome on default but stuff keeps opening on Edge which I hate?

Settings>Personalization>colors change your mode.
also see Change Accent Color in Windows 11 Tutorial

For Chrome-go to settings>apps>default apps>Click on Google Chrome.A page opens that gives a list of every file type Chrome can open and the ones Chrome is set to open. Change the ones you want to set Chrome as default by clicking on file type and selecting Chrome from the list that pops up. Specifically the following
.htm
.html
.webp
.http
.https
also .pdf if you do not use a third party pdf app

Once again Glaskuter you have come to my rescue. Sorry to be a pain, but my memory is disfunctional, or something. I am in your debt yet again. I dont know how I missed the colour change page but Chrome defaults was a bit of a puzzle at first.