Version

7.2.0

Host OS Type

Windows

Host OS name + version

Windows 11 Pro 24H2 (Build 26100.4652)

Host Architecture

x86

Guest OS Type

Linux

Guest Architecture

x86

Guest OS name + version

Ubuntu 24.04 LTS (amd64)

Component

GUI

What happened?

Hey. On Win 11 with VirtualBox 7.2, the GUI/ColorTheme setting is completely ignored.

Example:

…but VirtualBox Manager still shows the light theme.

It only switches to dark if I change Windows system theme (Settings → Personalization → Colors → Dark).

I think, this is a regression compared to VirtualBox 7.0.x, where GUI/Theme=dark worked independently.

How can we reproduce this?

1. Install VirtualBox 7.2 on Windows 11.
2. Run PowerShell:
   VBoxManage setextradata global GUI/ColorTheme Dark
3. Open VirtualBox Manager → still light theme.
4. Switch Windows to dark mode → VirtualBox becomes dark.

Did you upload all of your necessary log files, screenshots, etc.?

• Yes, I've uploaded all pertinent files to this issue.