Blank blue window appears without explanation or sample code

[MiguelAntonioRS]

Describe the bug

After running the example, a blank blue window appears with no indication of what to do next or how to proceed with development.

Steps to reproduce

1. Build and run the framework
2. Run the demo/game class
3. See only a blue screen with no output/log

Expected behavior

There should be:

• A message indicating that it's working
• Instructions on how to add graphics or input handling
• Or sample code showing how to draw something

Actual behavior

Window opens, nothing else happens.