id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
16647,Linux host VBox 5.1.18 ignores GTK color theme -> Qt5 issue,jamshark70,,"Ubuntu 14.04. I'm using ""Dorian-theme""[1]. In just about every application, I get dark window title bars, menu bars, dialog box backgrounds etc.

When I was using VirtualBox 4.x, VBox menu bars and backgrounds were dark, matching the theme.

I recently upgraded to 5.1, and backgrounds have regressed to light color.

It's not a high priority issue, but it's jarring to have two brightly colored bars (VBox menus ""File, Machine..."", and the VBox status bar at the bottom) on the screen where everything else is dark.

Since VBox used to be able to handle color themes properly, and now it doesn't, technically it's a regression.

Attached is a screenshot showing Firefox menu bars (OK) vs. VBox (not OK).

[1] https://www.gnome-look.org/content/show.php/Dorian+Theme?content=157200",defect,closed,GUI,VirtualBox 5.1.18,wontfix,color theme,,Windows,Linux