If you come across the issue of wanting Chrome to use dark mode but the title bar is still bright white, read on…

Issue found in Fedora 36

I have not had experience with this problem in other versions.

How to fix this issue

Original solution found here.

Run the following commands:

sed -i 's/^Exec=\/usr\/bin\/google-chrome-stable$/& --enable-features=WebUIDarkMode --force-dark-mode/' /usr/share/applications/google-chrome.desktop
sed -i 's/%U/--enable-features=WebUIDarkMode --force-dark-mode &/' /usr/share/applications/google-chrome.desktop

It’s a fairly easy fix which basically just forces Chrome to use dark mode.