Code to Diagram (EF Core Power Tools) very beginner question

Hi, Tldr: How to show .dgml as graphic in Visual Studio 2022? Answer: Install DGML Editor from Visual Studio Setup. Would we have someone with EF Core Power Tools experience here? I'm taking a course of EF Core and there was suggestion to use Power Tools. Seems good. I'm supposed to right-click the project, take EF Core Power Tools and Add DbContextDiagram. This is supposed to create a diagram. Like this. What I get is (probably the same) as code, like this. How do I view the code as a graphical diagram?