Got a few questions about customizing smartDark theme. What file do I edit to change the whole page background color? Also which file do I edit to change the navigation top bar in the forums (the bar that contains log in, memberlist, etc) Thanks in advance.

Nuke 6.5 themes:
Whole page BG color:

style.css: look for the body bg or bodyline bg color
It will also have to be changed in the overall_header.tpl file and forums.css.

Links at top of Forums are located in the overall_header.tpl

mikem