Changing Appearance

How to alter the appearance
You can work with JupyterLab in light or dark mode. Light mode is the default setting. In JupyterLab, select Settings, then JupyterLab Theme, and then JupyterLab Dark or JupyterLab Light.
Currently, these preferences are not preserved across workspaces and across sessions; you will have to alter the appearance setting for each workspace every time you return to it.