It is precise because it was drawn with CAD.
It's vector layer, but it's a little gabi-gabi due to the conversion.
The silver-white ratio is found in Japanese products in a ratio called the Yamato ratio.
cadで作図したので精密です。
ベクターレイヤーですが、変換の兼ね合いで少々ガビガビです。
白銀比は大和比と呼ばれる比率で和物で見かけます。