code: protected int getColor(Context ctx) {
          int color;
          if (this.isEnabled()) {
              color = ColorHolder.color(getTextColor(), ctx, R.attr.material_drawer_primary_text, R.color.material_drawer_primary_text);
          } else {
              color = ColorHolder.color(getDisabledTextColor(), ctx, R.attr.material_drawer_hint_text, R.color.material_drawer_hint_text);
          }
          return color;
      }
docs: helper method to decide for the correct color
  
  @param ctx
  @return