Thank you for playing!
The UI scaling should work with your system scaling but it's currently bugged, sorry. The next time I submit to DD, the game will have a new UI.
The 'hide walls' button is indeed broken. It's a regression that I let fester since I'm soon to rework the wall system to add room cutaways.
I have yet to make a sketch of the future UI. At first I was thinking of going the rollercoaster tycoon / transport tycoon route and have the buttons on the top have everything else in floating windows. But I don't like floating windows...
I like your suggestion on putting it on the left side. I can put what needs to be always shown like the camera controls, the time and money to be shown in a panel in the bottom left. The tools can be shown on the left side of the screen. And an event bar on bottom of the screen and which a bigger panel can pop from it to show stats and what not. Well I'm describing the Simcity 4 UI...
