design problem

[alexbox]

Hello
i had a weird problem in the style when i use this

        QFile styleFile( ":/style/style/style.qss" );
        styleFile.open( QFile::ReadOnly );
        QString style(styleFile.readAll());
        qApp->setStyleSheet(style); // Apply the loaded stylesheet

it applies the style on :/style/style/style.qss
but when i use a custom style for a form it forces the software to use style.qss instead of the custom style in this form

[mrjj]

Hi and welcome to the forums
Tried fast with
QApplication a(argc, argv);
a.setStyleSheet("background-color: rgb(0, 255, 127);");

and in MainWindow constructor
setStyleSheet("background-color: rgb(0, 0, 0);");

and that works as expected.

This is on win 10, Qt 5.12

I think we need more info to help you :)