The following download includes higher resolution menu backgrounds for Skyscrapersim:
https://custom.skyscrapersim.net/downloads/SkyscraperSimulatorShowcase/High%20Resolution%20Menu.zip (21 MB)
Resolutions Included: 1024x768, 1366x768, 1600x900, 1600x1200, 1920x1080, 2048x1536, 2560x1440, 3200x1800, 3840x2160
Installation Instructions1.Download and extract contents of High Resolution Menu.zip to your Skyscrapersim folder
2.Open skyscraper.ini in Notepad or TextEdit
3.Change the resolution in the ";screen width and height for main menu" parameter
4.Change the menu image in the ";main menu image" paramter to the one with the matching resolution as specified in the previous step
5.Save skyscrapersim.ini and load Skyscrapersim
