Safari 4 marks a dramatic shift in UI design for Apple's browser. In the Mac version, the big news is the Chrome-like "tabs on top" layout, and the equally Chrome-like Top Sites feature, but some smaller things have changed too. A new autocomplete feature has been added to the URL bar, and Google Suggest has been added to the search bar. Worst of all, in my admittedly-finicky opinion, That blue bar tracking page load progress in the URL bar is gone.

If this is all too much for you to take at once, and you want the faster rendering and improved standards-compliance without all of the UI upheaval, you might want to have a look at this list of hidden preferences compiled by Caius Durling. Using the Terminal, you can change everything I mentioned above back to the way it was in Safari 3. Want tabs on the bottom again? You got it. And long live the load bar!

[via Daring Fireball]