This is off topic.

[Yobbo]

This website has changed to black colour. I tried several times to revert back to the white colour with no success.
Any information or assistance will be very much appreciated.

 

[ThumperTM]

Hi,

Could you please provider more info?

Thank you!

 

[Diguelo]

The black is way better for your eyes, stick with it.

As a long term user of screens and monitors, white tends to close down your iris in the eye making fine print harder to see and exciting your retina. The black I switched to many decades back has saved my eyesight so much I dont need glasses to read web pages any more

Look in page preferences, dark mode has been added recently