TabWidget修改tab颜色，自定义样式

         可以通过tabWidget->setStyleSheet方法，设置样式，包括tab的样式。

          如

 QTabWidget* m_MainTab;
  m_MainTab->setStyleSheet("QTabWidget::pane{border-1px;border-color:rgb(96, 96, 96);
                                    border-style: outset;background-color: rgb(96, 96, 96);} 
QTabWidget::tab-bar{border-0px;}
QTabBar::tab{border-bottom-color: #FF0000;
             border-top-left-radius: 0px;
             border-top-right-radius: 0px;
             min-100px; min-height:25px;
             font:14px Times New Roman;
                 padding: 0px;
                 }
QTabBar::tab:!selected {
                        margin-top: 0px; margin-left: 30;
                        border-image: url(:/images/tab/sel3.png);
                    }
QTabBar::tab:selected {
                       color: blue;
                           border-image: url(:/images/tab/sel3.png);
                       }
QTabBar::tab:hover:!selected {
                              border-image: url(:/images/tab/sel3.png);
                          }
QTabBar::tab:selected {
                       margin-left: 10;
                   }");

找到的靠谱资料:

     https://pastebin.com/08wFKNGP

     https://www.cnblogs.com/findumars/p/4886330.html

     https://bbs.csdn.net/topics/390632657?page=1