code: public DepictionGenerator withOuterGlowHighlight(double width) {
          return withParam(StandardGenerator.Highlighting.class,
                           StandardGenerator.HighlightStyle.OuterGlow)
                  .withParam(StandardGenerator.OuterGlowWidth.class,
                             width);
      }
docs: Highlights are shown as an outer glow around the atom symbols and bonds
  rather than recoloring.
  
  @param width width of the outer glow relative to the bond stroke
  @return new generator for method chaining
  @see StandardGenerator.Highlighting
  @see StandardGenerator.HighlightStyle