CSSQMainWindow::separator { width: 10px; height: 10px;} QSplitter::handle:vertical { height: 10px;} QSplitter::handle:horizontal { width: 10px;}
Bash> qtcreator -stylesheet qtcreator.qss
QSplitterHandle{background-color: qlineargradient(spread:repeat, x1:0.3235, y1:0.545, x2:0.21, y2:0.545455, stop:0 rgba(0, 0, 0, 255), stop:1 rgba(255, 255, 255,255));width: 5px; height: 5px; }
C++ (Qt)MiniSplitter::MiniSplitter(QWidget *parent) : QSplitter(parent){ setHandleWidth(1); setChildrenCollapsible(false); setProperty("minisplitter", true);}