Do you know libraries to write simple guis that are flexible and largely adopted so I can find guides and examples? No need to design any part of it, just a rigid table-like carcass for buttons and elements.

I'm yet to dip my toe in anything graphical, but I thought that my current learning project could use a simple interface. I'm just afraid I'd give up if it would be too complicated to implement and wire to my now terminal-controlled code.

Can you suggest something for a beginner?