

[![Reference
Photo](https://i.stack.imgur.com/FJgmN.jpg)](https://i.stack.imgur.com/FJgmN.jpg)

The referenced photo clearly shows a special type of colored ink used to
outline the shadow boundaries on Asuka. My guess, from observing a cel that I
own, is that they outlined the shadows with a thinned out paint, gouache, or
maybe a thicker type of colored ink. I would really appreciate it if anyone
knows what is used because I'm looking to buy some for myself. Much thanks.


CC BY-SA 4.0
2020-10-23T03:59:53.630
60874
2020-10-23T03:59:53.630
56823
question
anime-production
What substance did artists use to outline the shadow boundaries on anime cels?