The class PIXIApp is the main entry point to create a new PIXI Application. It inherits from PIXI.Application, set meaningfull defaults, creates a scene and a stage and provides some helper methods to load resources, get the size of the app...
The pattern to create a new application is:
Let's look at an example of creating a new application:
What you should see: There should be a green circle on a dark background. In the upper left corner, the refresh rate should be approximately 60 fps.