WeChatMsg/app/ui/QSS/style.qss

QWidget{
    background: rgb(238,244,249);
}
/*去掉item虚线边框*/
QListWidget, QListView, QTreeWidget, QTreeView {
    outline: 0px;
}
QMenu::item:selected {
      color: black;
      background: rgb(230, 235, 240);
}
/*设置左侧选项的最小最大宽度,文字颜色和背景颜色*/
QListWidget {
    min-width: 120px;
    max-width: 380px;
    color: black;
    border:none;
}
QListWidget::item{
    min-width: 80px;
    max-width: 380px;
    min-height: 60px;
    max-height: 60px;
}
QListWidget::item:hover {
    background: rgb(230, 235, 240);
}
/*被选中时的背景颜色和左边框颜色*/
QListWidget::item:selected {
    background: rgb(230, 235, 240);
    border-left: 2px solid rgb(62, 62, 62);
    color: black;
    font-weight: bold;
}
/*鼠标悬停颜色*/
HistoryPanel::item:hover {
    background: rgb(52, 52, 52);
}

QCheckBox::indicator {
    background: rgb(255, 255, 255);
    Width:20px;
    Height:20px;
    border-radius: 10px
}
QCheckBox::indicator:unchecked{
    Width:20px;
    Height:20px;
    image: url(:/icons/icons/unselect.svg);
}
QCheckBox::indicator:checked{
    Width:20px;
    Height:20px;
    image: url(:/icons/icons/select.svg);
}