menu fonts not readable / too bright / gray on gray

[kbs170]

Hi,

I've got a problem with QGIS and GIMP concerning the text- and background-colours of the menu fonts. Both are gray. So, it is not readable. See screenshot.
I've updated QGIS and it works. In contrast I would like to keep GIMP in my actual version (GIMP 2.8.22). Maybe someone could help, please?

Something is strange und I wonder if that cohere (is the same reason):
I can't take a screenshot, while the GIMP-menu is opened. Maybe I problem with the graphics adapter?

GIMP 2.8.22

Ubuntu 18.04.2

GNOME 3.28.2

OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.2.8

00:02.0 VGA compatible controller 0300: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)

Subsystem: Micro-Star International Co., Ltd. [MSI] Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [1462:7851] Kernel driver in use: i915

best