code: private String getConsoleIconPath(DesiredCapabilities cap) {
      String name = consoleIconName(cap);
      String path = "org/openqa/grid/images/";
      InputStream in =
          Thread.currentThread().getContextClassLoader()
              .getResourceAsStream(path + name + ".png");
      if (in == null) {
        return null;
      }
      return "/grid/resources/" + path + name + ".png";
    }
docs: get the icon representing the browser for the grid. If the icon cannot be located, returns
  null.
  
  @param cap - Capability
  @return String with path to icon image file.  Can be <i>null</i> if no icon
  file if available.