QFrame#tagViewFrame{background-color:%1;background-image:url(%2);}
QTreeView{ background-color:transparent; } 

QToolButton:hover {
   background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
                                       stop: 0 %1, stop: 1 #cccccc);
}
QToolButton:pressed {
     background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
                                       stop: 0 %1, stop: 1 #f6f7fa);
 }