extjs/packages/charts/sass/var/chart/AbstractChart.scss

   1 $chart-legend-border-color: dynamic(#ccc);
   2 $chart-legend-border: dynamic(1px solid $chart-legend-border-color);
   3 $chart-legend-background-color: dynamic(#fff);
   4 $chart-legend-z-index: dynamic(10);
   5 $chart-legend-item-border: dynamic(1px solid rgba($chart-legend-border-color, .5));
   6 $chart-legend-item-background: dynamic(rgba(#fff, 0));
   7 $chart-legend-item-color: dynamic(#333);
   8 $chart-marker-size: dynamic(.8em);