Switch display resolutions or adjust your screen brightness and colors (time-based) from the menu bar.

Check out these Mac Menu Bar Display Apps:

Nightfall

A menu bar app for quickly toggling macOS’s dark mode. Left clicking the icon toggles dark mode; right clicking reveals more options.

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Auto Brightness

auto brightness

This menu bar app helps you configure brightness levels for seperate apps. When an app becomes the active window, Auto Brightness checks if you have configured a specific brightness level for that app. If so, it changes the brightness automatically.

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