Interesting and simple.

simple but cool and geek

looks good, but i think the gray is too light, and maybe a much darker link/search bar. also while we're here, red or the same green would good for the text

Just in time for Halloween. Great dark-mode theme (i.e., UI); the orange accent (font-color primarily seen in tool bars) really pops.

This is a great theme, the only reason it isn't my daily driver is the home page and new tab pages are blinding white. When you use a dark theme, it breaks the ambience. If it had a darker version I'd like it better.