Dear Maintainer,
* What led up to the situation?
I installed maliit-keyboard through APT.
I tried to change the theme using:
gsettings set org.maliit.keyboard.maliit theme BreezeDark
* What exactly did you do (or not do) that was effective (or
ineffective)?
As evoked in [1] and [2] a solution consists in runnning:
echo QT_QUICK_CONTROLS_STYLE="org.kde.desktop" | sudo tee -a /etc/environment
... and then restart Plasma.
[1] https://github.com/maliit/keyboard/issues/174#issuecomment-1307825321
[2] https://samleatherdale.com/blog/maliit-keyboard/
* What was the outcome of this action?
The keyboard is now correctly displayed in dark, but updating environment
variables is not straightforward.
* What outcome did you expect instead?
QT_QUICK_CONTROLS_STYLE should be correctly initialized without intervention of
the end-user.
Best regards