Wayyz01/Upgraded-Ui-Ogfn-Launcher- ? reverse-engineered prompt

Build me a clean launcher app for my ogfn project with an upgraded login screen and a nicer modern UI.

I want it to feel polished and easy to use, with a simple login flow, a main home screen after login, and a layout that looks like a real game launcher. Please make the design match the screenshots and keep it looking lightweight and smooth. Include the credits area and make sure the original credits stay in place, since that matters for this project.

If anything is unclear, look up current docs online if you need to, and feel free to make sensible choices so it works well out of the box. I mostly want something I can run and then customize later, with the UI already looking much better than a basic starter launcher.