Your Qt themes are great and I would like to use and modify them. But unfortunately it is not clear if we are allowed to do so and in what conditions.

Could you please add a Licence to make things clear ?

Thanks a lot !

I want to have a qlineargradient for the QGIS toolbar.

But if I load a QSS file with the following code, the top toolbar is getting black while the bars below Browser and Layer get the desired gradient.

QToolBar {
    background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #0077B6 stop:1 #80CDEC);
}

Is this a bug or am I doing something wrong?

Using a simple color, all bars work fine:

QToolBar {
    background-color: #80CDEC;
}