docs: public int getIconColor(Context ctx) {
          int iconColor;
          if (this.isEnabled()) {
              iconColor = ColorHolder.color(getIconColor(), ctx, R.attr.material_drawer_primary_icon, R.color.material_drawer_primary_icon);
          } else {
              iconColor = ColorHolder.color(getDisabledIconColor(), ctx, R.attr.material_drawer_hint_icon, R.color.material_drawer_hint_icon);
          }
          return iconColor;
      }