Prepare to remove style support again

SineStriker

2023-12-22 a5d13e19dd7f6037e10b649c49805922ae5e0fa6

 examples/mainwindow/dark-style.qss

@@ -142,12 +142,12 @@

/* Window */

MainWindow[custom-style=true] {
    background-color: transparent;
MainWindow {
    background-color: #1E1E1E;
}

MainWindow[custom-style=false] {
    background-color: #1E1E1E;
MainWindow[custom-style=true] {
    background-color: transparent;
}

QWidget#clock-widget {