minor tweaks

Yuhang Zhao

2023-12-19 fe50d30edcc31618905ec3e3dc39c8b78cee49db

 examples/mainwindow/dark-style.qss

@@ -16,6 +16,7 @@
    border: none;
    color: #ECECEC;
    background-color: transparent;
    min-height: 28px;
}