Dark / light theme of DV4

Perhaps I am missing the setting somewhere. Does the UI theme follow the OS setting?

Here is my current UI, it shows the menu and the DV4 window in the background:

My system is set to the dark theme, but I have no idea why my DV4 always stays in the light mode, which is sometimes annoying.

Any suggestion?

Many thanks

Welcome @lincw
Yes, it honors the system setting and what you’re showing is abnormal.
Does this persist after rebooting the machine?

Unfortunately, rebooting the machine didn’t fix the situation.

It still use the light theme. Reinstall DV4 is the only solution now?

Reinstalling should not be one of your first ideas. Open a support ticket.