In Chrome, you can enable complete Dark Mode in Incognito mode, which means that everything, including menus, will be dark.
1. Launch the Google Chrome web browser.
2. In the address box, type chrome://flags and hit Enter.
3. Now, in the Search field, type inherit.
You will see:
"Allow widgets to inherit the native theme from its parent widget."
4. From the drop-down box, select Enabled.
5. Click the "Relaunch" button to restart Google Chrome to take effect.