.QWidget{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #6799B3, stop: 1 #377a90); } QFrame#titleBarFrame, QFrame#toolBarFrame { background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6799B3, stop: 0.3 #377a90, stop: 0.31 #0e5e73, stop: 1 #4b8598); border: 1px solid #4b8598; } HeaderFrame { } QDialog{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #6799B3, stop: 1 #377a90); } QWidget#chatcentralwidget{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #6799B3, stop: 1 #377a90); } QToolBar#chattoolBar{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6799B3, stop: 0.3 #377a90, stop: 0.31 #0e5e73, stop: 1 #4b8598); border: 1px solid #4b8598; } QFrame#Chatbuttonframe{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6799B3, stop: 0.3 #377a90, stop: 0.31 #0e5e73, stop: 1 #4b8598); border: 1px solid #4b8598; } QStatusBar{ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,stop: 0 #6799B3, stop: 1 #377a90); } /* Customize the toolbar. */ QToolBar { background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6799B3, stop: 0.3 #377a90, stop: 0.31 #0e5e73, stop: 1 #4b8598); border: 1px solid #4b8598; } QTreeWidget::item:selected { /* when user selects item using mouse or keyboard */ background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6799B3, stop: 0.3 #377a90, stop: 0.31 #0e5e73, stop: 1 #4b8598); }