How to Start Paper App with a Black Canvas (or Any Other Color)

Paper app by WeTransfer is a popular drawing/ sketching app among designers, developers, and illustrators for its flexibility and ease of use. Creatives use it for brainstorming, mind-mapping, or prototyping. In fact, Paper is featured as one of the best note-taking apps in one of our posts.
I’m a user of the Paper app, and I find it to be having a lot of features that are sought-after. However, while using the app, I noticed that the app doesn’t allow you to have a blank canvas with