How to make a black screen in Unity for C Sharp?

Question

Unity

https://www.youtube.com/watch?v=0hiGmZw-yBQ
In this video, rewind to the center, there is a black screen. When he creates a Sea Sharp project. When I create, native notepad opens. Is it possible to somehow change how this guy has? So that the lines (1 2 3 ... 44 45 46) are visible, and all that?

Answer 1

In the unit settings, specify that you have Visual Studio as the editor. It should be set separately, if that.

Answer 2

Install this application
https://www.youtube.com/watch?v=FljfXrxgAmM
And in the unity settings, specify that the editor is Visual Studio 2019