In the creation of hard pen calligraphy, how to create works with white characters on a black background? Thank god, help me.

I know two methods: 1, font blank: dye the background color with ink. 2. Writing on black paper: On black paper, write with white pigments. The first way is to watch my calligraphy teacher do it. The second method is that my classmate tried it like this. I like the first method. The effect is good. But it's hard to master.