Citra's emulated screen layouts can be quite opaque for anyone just starting to get a grasp on 3DS emulation on Android. For most phones, default settings tend to work well, but foldable phones (like Surface Duos) tend to fair much worse. To save folks some time and effort, we created a some replacement config.ini files with layouts fine tuned for foldables. Once downloaded, it's as easy as copying the new files into your config.ini of choice into the citra-emu/config directory of your choice. Also, if you'd prefer smaller emulated screens, we've included 50% layouts in the files as well. Simply, open them in a notepad, scroll down to the layouts section, uncomment the 50% options (remove the # before each line), and comment out the 100% options.