User blog comment:Sannse/Even-faster-Monaco/@comment-1291946-20100318045255

The custom search icon no longer works, and CSS cannot fix it because the image is specified with an img tag instead of as a CSS property like background-image. No, never mind that, it is background-image.

Also, the id has changed from search_button to search-button. Unless, of course, it was always like that, and my CSS has been wrong for over a year.