Customize Studio Display
Stay in view with Center Stage. Center Stage uses machine learning to adjust the camera on your Studio Display, expanding and zooming so you stay in the frame during video calls even when you move around or have others join or leave your call. Center Stage is on by default. To turn Center Stage on or off, click 
Change the reference mode. Studio Display has several reference modes that tailor the display’s color, brightness, gamma, and white point to match the reference requirements for each media type, including modes for broader use cases such as photography, internet and web development, and design and print. For more information, see the Apple Support article Use reference modes with your Apple display.
Stay focused with Dark Mode. You can use a dark color scheme for the desktop, menu bar, Dock, and all the built-in macOS apps. Dark Mode is finely tuned for professionals who edit photos and images—colors and fine details pop against the dark app backgrounds. But it’s also great for anyone who just wants to focus on their content. Your content stands out front and center while darkened controls and windows recede into the background. See white text on a black background in apps such as Mail, Contacts, Calendar, and Messages, so it’s easier on your eyes when you’re working in dark environments.
Use a dynamic desktop. When you use a dynamic wallpaper, the picture automatically changes to match the time of day in your location. Click Wallpaper in the sidebar in System Settings, then choose a dynamic wallpaper. To have your screen change based on your time zone, turn on Location Services. If Location Services is turned off, the picture changes based on the time zone specified in Date & Time settings.
Night Shift. Switch your Mac to warmer colors at night or in low-light conditions to reduce your exposure to bright blue light. Blue light can make it harder to fall asleep, so warmer screen colors may help you get a better night’s rest. You can schedule Night Shift to turn on and off automatically at specific times, or set it to come on from sunset to sunrise. In System Settings, click Displays, click the Night Shift button at the bottom, then set your options. Drag the slider to adjust the color temperature.