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knovoselic

Member

Registered: 2018-12-13

Posts: 16

Override QT application color scheme in Plasma

How can I override color scheme for a single QT app in Plasma DE?

I'm running Breeze dark color scheme, and unfortunately some apps have hardcoded white colors. Like this one:
https://ibb.co/SsP0tpb

Mod Edit - Replaced oversized image with link.
CoC - Pasting pictures and code

Last edited by Slithery (2018-12-18 11:25:58)

crmullins

Member

Registered: 2014-04-08

Posts: 27

Re: Override QT application color scheme in Plasma

Something like this from [1] might work, put into the app's main function before showing the parent window.

    qApp->setStyle(QStyleFactory::create("Fusion"));

    QPalette darkPalette;
    darkPalette.setColor(QPalette::Window, QColor(53,53,53));
    darkPalette.setColor(QPalette::WindowText, Qt::white);
    darkPalette.setColor(QPalette::Base, QColor(25,25,25));
    darkPalette.setColor(QPalette::AlternateBase, QColor(53,53,53));
    darkPalette.setColor(QPalette::ToolTipBase, Qt::white);
    darkPalette.setColor(QPalette::ToolTipText, Qt::white);
    darkPalette.setColor(QPalette::Text, Qt::white);
    darkPalette.setColor(QPalette::Button, QColor(53,53,53));
    darkPalette.setColor(QPalette::ButtonText, Qt::white);
    darkPalette.setColor(QPalette::BrightText, Qt::red);
    darkPalette.setColor(QPalette::Link, QColor(42, 130, 218));

    darkPalette.setColor(QPalette::Highlight, QColor(42, 130, 218));
    darkPalette.setColor(QPalette::HighlightedText, Qt::black);
    
    qApp->setPalette(darkPalette);

    qApp->setStyleSheet("QToolTip { color: #ffffff; background-color: #2a82da; border: 1px solid white; }");

[1] https://gist.github.com/QuantumCD/6245215

knovoselic

Member

Registered: 2018-12-13

Posts: 16

Re: Override QT application color scheme in Plasma

Thanks, I might have to try and recompile the app if there's no other way to do it.