Arch Linux

RounakDutta

Member

From: West Bengal, India

Registered: 2022-02-11

Posts: 192

Website

[SOLVED] Cannot force dark theme in qt applications.

I know virtualbox is a qt applications.
I want to enable dark mode in virtualbox
So I installed the qt5ct application and in my .bashrc I added the following lines -

 
#
# ~/.bashrc
#

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

alias ls='ls --color=auto'
PS1='[\u@\h \W]\$ '
neofetch

export NNN_BMS='d:~/Desktop;p:~/Pictures;D:~/Downloads/'
export NNN_SSHFS="sshfs -o follow_symlinks"        # make sshfs follow symlinks on the remote
export NNN_COLORS="2136"                           # use a different color for each context
export NNN_TRASH=1                                 # trash (needs trash-cli) instead of delete

export EDITOR=vim
export QT_QPA_PLATFORMTHEME=qt5ct

Then when I open the application qt5ct it gives me a error on the upper corner -

The applications is not configured correctly-
The QT_QPA_PLATFORMTHEME environment variable is not set (required value: qt5ct).

I tried to use kvantum but it is very complicated and going out of my mind.....

Can anyone help me with this ?

Last edited by RounakDutta (2022-06-09 17:23:51)

Maniaxx

Member

Registered: 2014-05-14

Posts: 761

Re: [SOLVED] Cannot force dark theme in qt applications.

.bashrc is limited to shell scope. /etc/profile.d/*.sh is a nice place.
https://wiki.archlinux.org/title/Enviro … s#Globally

Last edited by Maniaxx (2022-06-08 13:20:31)

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sys2064

RounakDutta

Member

From: West Bengal, India

Registered: 2022-02-11

Posts: 192

Website

Re: [SOLVED] Cannot force dark theme in qt applications.

THANK YOU SO MUCH!!. Instead of setting the variable globally I was setting it for per user. I am so dumb. It works now after I set it to -

[rounak@archissexy ~]$ ls /etc/profile.d
freetype2.sh  libreoffice-still.csh  perlbin.csh  vte.sh
gawk.csh      libreoffice-still.sh   perlbin.sh
gawk.sh       locale.sh              qt5ct.sh
gpm.sh        PackageKit.sh          vte.csh
[rounak@archissexy ~]$ cd /etc/profile.d
[rounak@archissexy profile.d]$ cat qt5ct.sh
export QT_QPA_PLATFORMTHEME=qt5ct
[rounak@archissexy profile.d]$

The application ("qt5ct5") works !!!!

Last edited by RounakDutta (2022-06-09 17:19:38)

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [SOLVED] Cannot force dark theme in qt applications.

THANK YOU SO MUCH!!. Instead of setting the variable globally I was setting it for per user.

Not quite. You were setting it 'per user but only for applications launched from the terminal'.

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No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles