The GUI

What graphical library does this application use?

We use Dear ImGui by ocornut. I highly suggest you head there and star that project. It's a fantastic piece of work made by a fantastic team of open source developers.

What graphical framework does this application use?

This uses DirectX11. This choice was made because it is made for windows. So is this application, so why not benefit from that. Also, because there was already an example in the Dear ImGui codebase.

This backend implementation allowed me to set this project up nice and fast, making my life much easier than it should have been.