Switch display resolutions or adjust your screen brightness and colors (time-based) from the menu bar.
Check out these Mac Menu Bar Display Apps:
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 lets you control your external displays: Setting brightness, contrast, and volume from your Mac’s menu bar.