# Customise JupyterLab's interface on TLJH (w/repo2docker)

**URL:** <https://discourse.jupyter.org/t/customise-jupyterlabs-interface-on-tljh-w-repo2docker/20486>\
**Category:** The Littlest JupyterHub\
**Tags:** jupyterlab, help-wanted\
**Created:** [July 19, 2023, 2:28pm UTC](https://discourse.jupyter.org/t/customise-jupyterlabs-interface-on-tljh-w-repo2docker/20486 "2023-07-19T14:28:55Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![CalvinMT](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.jupyter.org/calvinmt/32/10493_2.png) [@CalvinMT](https://discourse.jupyter.org/u/CalvinMT)\
**Post date:** [July 19, 2023, 2:28pm UTC](https://discourse.jupyter.org/t/customise-jupyterlabs-interface-on-tljh-w-repo2docker/20486/1 "2023-07-19T14:28:55Z")

</div>

Hi!

I have installed **TLJH** with its **repo2docker** plugin.  
I now want to customise **JupyterLab** ’s interface for all users.

I have found multiple sources saying that it is possible to achieve my goal through the means of an `overrides.json` file:

[JupyterLab User Settings Directory](https://jupyterlab.readthedocs.io/en/latest/user/directories.html#jupyterlab-user-settings-directory)  
[Setting default user settings on TLJH](https://discourse.jupyter.org/t/setting-default-user-settings-on-tljh/18856)

I did as those sources said and I attempted, after reloading the hub, to run TLJH with some settings written inside `/opt/tljh/user/share/jupyter/lab/settings/overrides.json`:

```json
{
  "@jupyterlab/apputils-extension:themes": {
    "theme": "JupyterLab Dark"
  },
  "@jupyterlab/notebook-extension:panel": {
    "toolbar": [
      {
        "name": "restart-and-run",
        "disabled": true
      }
    ]
  }
}

```

Unfortunately, JupyterLab’s interface did not change as expected after logging in with an existing user and restarting a Docker container through JupyterHub’s API.

I then tried changing the `overrides.json` file’s permission to 755.  
And I also tried rebuilding the Docker image through repo2docker’s “Environments” tab.  
But still no change in JupyterLab’s interface.

Am I missing a crucial step for this to work?

---

<div class="post-metadata">

**Author:** ![CalvinMT](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.jupyter.org/calvinmt/32/10493_2.png) [@CalvinMT](https://discourse.jupyter.org/u/CalvinMT)\
**Post date:** [September 6, 2023, 11:50am UTC](https://discourse.jupyter.org/t/customise-jupyterlabs-interface-on-tljh-w-repo2docker/20486/2 "2023-09-06T11:50:56Z")

</div>

Hi again!

I have no updates to give on this, but I still need to customise JupyterLab’s interface.

Has anyone got an idea what would be missing?  
Or is it just not possible in this use case, with TLJH and repo2docker?