In the gui manual in the program ide , show the window metal
You're right:

But neither my my PC under Windows or Linux nor my Mac looks like those examples. That's because I'm using different themes in all cases:



Since MaxGUI is system-level GUI, I think that each user's settings control how the windows & gadgets look with no way for MaxGUI to override that. I believe that it just uses whatever theme the user is using, which makes sense (since that's how the user wants to see things).