I can't say I'm really fancy Oracle's new web theme but there are some good improvements. Some of it I think would also work well for the community editor and displaying code. I'm talking about the "copy" button, for example:
The copy butten is very useful. It not only eliminates current browser compatibly issues, which add annoying line breaks when copying and pasting, but it's also possible to resize your browser window without introducing soft line breaks that will mess up the code. Hence the "copy button will also make sure you have everything selected properly. Well done!
I suggest to consider same or similar solution for the editor in the new community platform.