LibreOffice Unable Change to Light Theme

[gnulab]

Hi,

I am on Arch Linux with KDE 6
Plasma: 6.x
Qt: 6.x
KDE color scheme: Breeze Dark
LibreOffice VCL (default): KDE / Qt-based

and this is my LibreOffice version.
Version: 25.8.4.2 (X86_64) / LibreOffice Community
Build ID: 580(Build:2)
CPU threads: 16; OS: Linux 6.18; UI render: default; VCL: x11
Locale: en-US (C.UTF-8); UI: en-US
25.8.4-3
Calc: threaded

I had changed the LibreOffice Theme to Light, but it still remain in Dark Mode. However launching LO via terminal with this command SAL_USE_VCLPLUGIN=gen libreoffice successfully change it to Light Mode.

According to ChatGPT, it seems KDE is forcing LO to maintain Dark Mode.

I read this thread Change LibreOffice theme from dark to light - #2 by Armin which I tried both installation source still the same.

Anyone else is facing the same problem as me and managed to crack it?

Henry

[Wanderer]

@gnulab

I had changed the LibreOffice Theme to Light

Where/how? Can you provide a screenshot of your settings?
Imho Tools>Options–>Appearance should be the place to change your settings.
.

@gnulab

I read this thread Change LibreOffice theme from dark to light - #2 by Armin which I tried both installation source still the same.

I don’t understand your “tried both installation source”, but basically the thread suggests a setting for GTK as environment-variable. It is not really surprising, this has no effect, when running under qt-based KDE.
.
The other suggestion there is to use a flatpack based on GTK instead of qt, so not reading the settings in kde/qt. I guess for the same reason your own “solution” via SAL_USE_VCLPLUGIN will simply ignore the settings in KDE.
.

@gnulab

According to ChatGPT, it seems KDE is forcing LO to maintain Dark Mode.

Just toss a coin instead, that’s cheaper.
As your own method shows (SAL_USE_VCLPLUGIN), KDE can’t force anything here.