It becomes it when the bright end part is erased by tone scraping etc. after it paints and it transforms it.
Because it is a common pattern, please use it for the favorite part such as the wall and the ground of the building.
描いて変形した後に、明るい端部分をトーン削り等で消してやるとそれっぽくなります。
よくある模様ですので、建物の壁や地面など好きな部分に使ってやって下さい。

