Website design suggestions & bug fixes  

I personally prefer black-on-white text for the top bar. Goes much better with the forum section.

The text highlight color for the header is white and does not look good on a light background. Plus, I liked the font used before for the entire site.

The font size of text in the drop down menus (such as FORUM, HOW-TO) could be larger - it might look better.

The favicon/bookmark icon has a white background. A transparent background would look better. This is how it currently looks:

Thank you for making the requested changes! Appreciate it. The last gripe I have is the font as aforementioned. The one that was set for a brief period of time while the design was undergoing changes was great (looked like Apple's default SF font I guess?).

Nah, it's not the currently set font. This one seems too narrow.

Using Wayback Machine:  https://web.archive.org/web/20180118054639/egpu.io/forums

Check out the font on the right - "Recent Posts" and that list. That looks great, although the size of the font for the "Recent Posts" section seems too large in that snapshot.

Quoted text currently seems to have a font style I'm looking for... maybe that's the one.

Thanks for the update @nando4! Looks great. Just a little issue though, the headings in posts and post titles are not updated. 

Old Font For H2, H3, etc. and titles like “External Graphics Card Forum”...

The new font would look good for those as well. 

Also noticed that the font in quotes is different than normal text. 

Different font here. 

@mac_editor, I've made the font changes to the Apple SF one. Indeed, looks great. Thank you for your suggestion