Display settings for your Mac
Use a dynamic desktop. When you use a dynamic desktop picture, the desktop picture automatically changes to match the time of day in your location. Click Wallpaper in System Settings, then choose a picture for Dynamic Desktop. To have your screen change based on your time zone, enable Location Services. If Location Services is turned off, the picture changes based on the time zone specified in Date & Time settings.
Make your screen easier to see. Change the display resolution to make everything on the screen bigger, or increase the size of text and icons to make them easier to see. You can also make the pointer easier to see or quickly locate it with a shake of your mouse. See Use reference modes with your display.
Learn more. See Change Display settings for accessibility in the macOS User Guide.