The game menu is coming along quite well.  You can interact with the menu items with the keyboard or mouse.  It highlights the focused item, and shows some descriptive text along the bottom.

I'm actually quite pleased with the way it's structured as well...  though I'll admit to having quite a few frustrating moments fighting with the C++ STL classes. ?  For the game options, I'm going to implement a simple slider UI -- that'll be the next thing to tackle.  Once I have that, I should be able to blaze through the rest of the game options.

There's a whole lot I could say about how I structured the menu, but as I have to head off for family stuff right away I'll just let the latest GitHub commit do the talking!