dbgate/packages/web/public/dimensions.css

:root {
  --dim-widget-icon-size: 50px;
  --dim-statusbar-height: 20px;
  --dim-left-panel-width: 300px;
  --dim-tabs-panel-height: 53px;
  --dim-splitter-thickness: 3px;
  --dim-content-left: calc(var(--dim-widget-icon-size) + var(--dim-left-panel-width) + var(--dim-splitter-thickness));
}