Excuse me, draw on black paper with Bai Mo pen. What kind of paper and pen is it?

1. Add Bai Mo to the accounting pen and draw a sketch on unlit blackboard paper; Or paint with hard pen, calligraphy pen and Bai Mo.

2. Draw on white paper or use a pencil, but in software (such as Photoshop software), use the "inversion" function to realize color inversion.