# Stackbar If you would like to add a visual stackbar to show which windows are in a container stack ensure the following options are defined in the `komorebi.json` configuration file. ```json { "stackbar": { "height": 40, "mode": "OnStack", "tabs": { "width": 300, "focused_text": "#00a542", "unfocused_text": "#b3b3b3", "background": "#141414" } } } ``` This feature is not considered stable, and you may encounter visual artifacts from time to time.