MediaWiki:Vector-darkmode.less/prefs.less

.oo-ui-tabSelectWidget-framed {

   background-color: #182137;
   border-bottom: 1px solid #596e96;

   .oo-ui-tabOptionWidget.oo-ui-optionWidget-selected {
       background-color: #303f59;
   }

   .oo-ui-tabOptionWidget.oo-ui-optionWidget-selected .oo-ui-labelElement-label {
       border-bottom-color: #596e96;
   }

   .oo-ui-tabOptionWidget.oo-ui-widget-enabled.oo-ui-optionWidget-selected:hover,
   .oo-ui-tabOptionWidget.oo-ui-widget-enabled:active {
       background-color: #303f59;
   }

   .oo-ui-tabOptionWidget.oo-ui-widget-enabled:hover {
       background-color: #303f59;
   }

}

.mw-prefs-buttons {

   background-color: #182137;
   border-top-color: #596e96;
   box-shadow: none;

} .mw-htmlform-ooui .mw-htmlform-matrix tbody {

   tr:nth-child(even) td,
   tr:nth-child(even):hover td {
       background-color: #303f59;
   }

   tr:hover td {
       background-color: #182137;
   }

}