We heard you. You wanted sidebar options, and we're here to provide that.
To update your Hive sidebar color, visit your profile picture dropdown and click "Appearance."

Once you click on Appearance, you'll be able to choose from a variety of fun customizable options.

You can select your color mode: "Light" "Dark" or "System," as well as your sidebar contrast preference and sidebar color.

If you want the classic Hive sidebar, select "Always dark" and "Classic blue."
Want to try something different? Toggle through the colors to find your perfect sidebar.