Is it possible to render web content over a clear background using WebKit?

Question

I\'m trying to gauge the possibility of a patch to WebKit which would allow all rendered graphics to be rendered onto a fully transparent background.

The desired eff

Answer 1

Back in Safari 1.3 and 2, there was a hidden debug menu (invoked via the Terminal: defaults write com.apple.Safari IncludeDebugMenu 1) that included a “Use Transparent Window” option.

• http://www.macosxhints.com/article.php?story=20050418015445258
• http://www.wiredatom.com/blog/2005/10/20/safari-transparency/

Not sure if this was a WebKit thing or a Safari thing though.

(In Safari 3, the debug menu seems to have been replaced by the “Develop” menu (enable in Preferences > Advanced) which doesn’t have the transparent window option.)