Switch display resolutions or adjust your screen brightness and colors (time-based) from the menu bar.
Check out these Mac Menu Bar Display Apps:
GoldenHour
This menu bar app replicates the golden hour effect by reclaiming unused screen space when using your computer for video communication. It allows you to illuminate yourself with a consistent and pleasing rosy glow.
JustStream
With this menu bar app you can cast local media from your MacBook or Mac to other devices that are connected to the same Wi-Fi network. Broadcast your media in any format, any resolution (including Ultra HD), without the need for any cables.
DisplayBuddy
DisplayBuddy lets you control your external displays: Setting brightness, contrast, and volume from your Mac’s menu bar.