Thanks for checking out the demo and for the feedback, appreciate it. And thanks for reminding me about the ultra wide monitor issue, it's not something we considered much up to this point but I will add that to the list.
If you scaled the UI to the vertical screen size, that'd probably fix it. The UI was cut off at the bottom on my 21:9 monitor, luckily my other screen is 16:9 and it fit just fine there.
