Styling browser dialog boxes

Question

(from failblog)

Not only the background's been changed but also the buttons. How can this be done?

Answer 1

That's a screen shot of someone's dialog box.

That person obviously has set a custom theme on their OS with that style. This has not been controlled by the browser or anything that could have been done via the browser.

Answer 2

The individual with the browser is probably running a different scheme within the browser which is modifying the dialog box.

Answer 3

You can look at the jqueryui dialog box here:

http://jqueryui.com/demos/dialog/