code: public void forceInstallRenderer(Class objectClass) {
          if (objectClass == Date.class) {
              table.setDefaultRenderer(Date.class, null);
          } else if (objectClass == Number.class) {
              table.setDefaultRenderer(Number.class, null);
          } else if (objectClass == Float.class) {
              table.setDefaultRenderer(Float.class, null);
          } else if (objectClass == Icon.class) {
              table.setDefaultRenderer(Icon.class, null);
          } else if (objectClass == ImageIcon.class) {
              table.setDefaultRenderer(ImageIcon.class, null);
          } else if (objectClass == Boolean.class) {
              table.setDefaultRenderer(Boolean.class, new SeaGlassBooleanTableCellRenderer());
          } else if (objectClass == Object.class) {
              table.setDefaultRenderer(Object.class, new SeaGlassTableCellRenderer());
          }
      }
docs: Force the installation of the appropriate Sea Glass Renderer. We don't
  need to save the old renderer, because in principle that has already been
  done in {@link installDefaults()}.
  
  @param objectClass the object class to install the renderer on.