@pastel10 ... Try this ..., in Settings, Enable Dark Theme. (which you have done).

Then under wallpapers, select a black wallpaper. That should work.

On my setup, the active tab is a dark gray background with white text.

The inactive tabs are black with white text. I also have minor vision problems and my setup makes it
much easier to read. Hope this helps.

One other thought, disable any tab extensions that might conflict with this.

What helped me was to use a dark theme so that the tabs are white text on a black background.

I just stumbled upon a new amazing bookmarks sidebar extension in the Chrome extensions library.

It's called Bookmark Sidebar and allows the sidebar to pop-up using the cursor only. It also allows quite a few options for customizing the actions, font sizes etc. Very impressive.

@leocg ... I hope my following reply does not come across as snarky.

It's time Opera got back to basics. If the Sync procedure does not work as it should, then why enable it at all? Fix it so that it works properly.

Does the average user really need "smarter news" and Netflix
recommendations? (From the blog). Same with crypto wallet access.

I'm still waiting, (not so patiently), for a proper bookmarks sidebar. Similar to Firefox, that can be accomplished there by using prepared CSS code. Yes, I know Opera has sidebar extensions, but they are clunky.

i hope the near future will see Opera return to its roots.

@rif ... Does this not change the Opera "statistics" on web browsing? Is it a good thing or a bad thing?

I am using https://blogs.opera.com/desktop/. And I see now there are new entries.

I guess, perhaps, I am just too impatient. My apologies. Thanks to all that replied.

Today is Oct. 23. Is there nothing the developers want to share with us?

I use the "Z" key to go back a page. It's been that way for eons.

After the last update, the function was turned off. Not by me. What's happening here?

Is it possible to backup only the Speed Dial entries?

I have duplicate entries in the bookmarks and want to start over.

The blog says ...The next time you visit the extensions web store, you will be offered to click the Install Extension button found at the top of the page. This will allow you to quickly add extensions from the Chrome Web Store onto Opera.

Does this mean that the Install Chrome extension is no longer required?