I hate the format change, and when reverting to the 'basic' version, the ability to customize the background was taken away...so I'm forced to use the BRIGHT BLINDING WHITE BACKGROUND.

IT HURTS!

I'm NOT kidding. The bright white background physically hurts my eyes. Prolonged exposure to bright light gives me headaches and causes visual issues.

I'm POSITIVE I'm not the only person in the world with this problem. leaving the white background as the only option is an accessibility issue for people for people who are visually impaired, people like myself who are sensitive to bright light, photophobia...dark mode is easier on our eyes.

The least Yahoo could have done was taken people with visual issues/disabilities when making changes. The forced change is total ********. Sorry for the swearing...but my eyes ache after just a few minutes of trying to see if there was a way to bring a dark screen back to the 'basic' version.

I started my email account in 1994...and this has nothing to do with not liking change. As far as I was concerned, the old format may have needed a tweak or two, but overall...it was perfect and Google/Outlook could have taken pointers from the things Yahoo Mail does right.

I can't use a product that causes me physical pain when I use it. If they don't change their 'basic version' back to the version I was using...I'm done.

I don't know if this was change for the sake of change, but if you told me you had a group of Yahoo users do product testing on this update and the results were overwhelming positive, I'd say you were lying.