docs: public static void applyToOrTransparent(ColorHolder colorHolder, Context ctx, GradientDrawable gradientDrawable) {
          if (colorHolder != null && gradientDrawable != null) {
              colorHolder.applyTo(ctx, gradientDrawable);
          } else if (gradientDrawable != null) {
              gradientDrawable.setColor(Color.TRANSPARENT);
          }
      }