Collection:
Display Apps
Switch display resolutions or adjust your screen brightness and colors (time-based) from the menu bar.
Check out these Mac Menu Bar Display Apps:
Collection:
Display Apps
QuickRes
Quickly switch resolutions on your Retina display. QuickRes is a screen resolution switcher that unlocks the full power of your Mac’s display. The app even bypasses Apple’s restrictions.
Collection:
Display Apps
Darksome
Mojave has a nice dark theme, but to change it you need to go click trough multiple screens to change the theme. Darksome lets you switch with a mouse click.
Collection:
Display Apps
NightTone
Work more comfortably.
NightTone makes your screen more comfortable, enjoyable and healthier by shifting the colors on your display to a warmer, eye-friendly palette. The app will (depending on the time at day) automatically shifts the colors of your display to a different palette.