Hi Pesala.

Thanks for responding. I'm not trying to change the source viewer to another program, I just want to change the syntax colors and font size of Opera's source viewer.

I'm running version 12.16 on Windows 7. I upgraded last night to version 19, so I actually have two versions. I'm editing pages in version 12.16 though, as version 19 doesn't seem to let you edit the source code of pages.