Metadata-Version: 2.4
Name: jupyterlab_branding_extension
Version: 1.0.27
Summary: Jupyterlab extension to use custom logo for the jupyterlab main logo
Project-URL: Homepage, https://github.com/stellarshenson/jupyterlab_branding_extension
Project-URL: Bug Tracker, https://github.com/stellarshenson/jupyterlab_branding_extension/issues
Project-URL: Repository, https://github.com/stellarshenson/jupyterlab_branding_extension.git
Author-email: Stellars Henson <konrad.jelen@gmail.com>
License: BSD 3-Clause License
        
        Copyright (c) 2026, Stellars Henson
        All rights reserved.
        
        Redistribution and use in source and binary forms, with or without
        modification, are permitted provided that the following conditions are met:
        
        1. Redistributions of source code must retain the above copyright notice, this
           list of conditions and the following disclaimer.
        
        2. Redistributions in binary form must reproduce the above copyright notice,
           this list of conditions and the following disclaimer in the documentation
           and/or other materials provided with the distribution.
        
        3. Neither the name of the copyright holder nor the names of its
           contributors may be used to endorse or promote products derived from
           this software without specific prior written permission.
        
        THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
        AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
        DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
        FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
        SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
        CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
        OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
        OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
License-File: LICENSE
Keywords: jupyter,jupyterlab,jupyterlab-extension
Classifier: Framework :: Jupyter
Classifier: Framework :: Jupyter :: JupyterLab
Classifier: Framework :: Jupyter :: JupyterLab :: 4
Classifier: Framework :: Jupyter :: JupyterLab :: Extensions
Classifier: Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt
Classifier: License :: OSI Approved :: BSD License
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Programming Language :: Python :: 3.14
Requires-Python: >=3.10
Provides-Extra: test
Requires-Dist: pytest-asyncio>=0.21; extra == 'test'
Requires-Dist: pytest-cov; extra == 'test'
Requires-Dist: pytest>=7.0; extra == 'test'
Description-Content-Type: text/markdown

# jupyterlab_branding_extension

[![GitHub Actions](https://github.com/stellarshenson/jupyterlab_branding_extension/actions/workflows/build.yml/badge.svg)](https://github.com/stellarshenson/jupyterlab_branding_extension/actions/workflows/build.yml)
[![npm version](https://img.shields.io/npm/v/jupyterlab_branding_extension.svg)](https://www.npmjs.com/package/jupyterlab_branding_extension)
[![PyPI version](https://img.shields.io/pypi/v/jupyterlab_branding_extension.svg)](https://pypi.org/project/jupyterlab_branding_extension/)
[![Total PyPI downloads](https://static.pepy.tech/badge/jupyterlab_branding_extension)](https://pepy.tech/project/jupyterlab_branding_extension)
[![JupyterLab 4](https://img.shields.io/badge/JupyterLab-4-orange.svg)](https://jupyterlab.readthedocs.io/en/stable/)
[![Brought To You By KOLOMOLO](https://img.shields.io/badge/Brought%20To%20You%20By-KOLOMOLO-00ffff?style=flat)](https://kolomolo.com)
[![Donate PayPal](https://img.shields.io/badge/Donate-PayPal-blue?style=flat)](https://www.paypal.com/donate/?hosted_button_id=B4KPBJDLLXTSA)

JupyterLab branding extension that replaces the default main area logo with a custom image and displays a configurable system name in the top toolbar. Supports SVG (inline embedding) and raster logo formats via a configurable URI.

## Features

- **Custom main area logo** - replace the default JupyterLab 3-dot logo with any SVG or raster image
- **System name in top toolbar** - display a configurable text label (e.g. environment name) in the right side of the top toolbar, with optional custom hex color
- **Configurable via traitlets** - set `logo_uri`, `system_name`, `header_capitalize_system_name`, and `header_system_name_color` in `jupyter_lab_config.py`
- **Local and remote logos** - supports `file://` paths, `https://` URLs, and local filesystem paths
- **Inline SVG embedding** - SVG logos are embedded directly in the DOM, matching JupyterLab's native approach
- **Server extension** - serves local logo files through an authenticated HTTP endpoint, bypassing browser `file://` restrictions

## Requirements

- JupyterLab >= 4.0.0
- jupyter_server >= 2.0.0

## Install

```bash
pip install jupyterlab_branding_extension
```

## Configuration

Add to your `jupyter_lab_config.py`:

```python
# Local file path
c.Branding.logo_uri = "/path/to/your/logo.svg"

# file:// URI
c.Branding.logo_uri = "file:///path/to/your/logo.svg"

# Remote URL
c.Branding.logo_uri = "https://example.com/logo.svg"
```

When no protocol is specified, the path is treated as a local filesystem path.

### System name

```python
# Display "PRODUCTION" in the top-right of the header
c.Branding.system_name = "production"
c.Branding.header_capitalize_system_name = True  # default

# Display "production" without uppercase transform
c.Branding.system_name = "production"
c.Branding.header_capitalize_system_name = False

# Optional: override text color with a hex value
c.Branding.header_system_name_color = "#ff8800"
```

The system name is rendered inside the existing JupyterLab header toolbar spacer (`jp-Toolbar-spacer`). When `header_system_name_color` is empty, the text uses the JupyterLab sidebar font color (`--jp-ui-font-color2`) and adapts to light/dark themes automatically. When set to a hex value, that color is applied as an inline style. Leave `system_name` empty to disable this feature.

## How It Works

The extension has two components:

- **Server extension** - exposes `/jupyterlab-branding/config` (returns the configured logo URL, system name, header capitalize flag, and header color) and `/jupyterlab-branding/logo` (serves local logo files with correct MIME type)
- **Frontend plugin** - fetches configuration on startup, retrieves logo content, replaces the `#jp-MainLogo` element, and injects the system name span into the top toolbar spacer. SVG logos are embedded inline, raster images use `<img>` tags

## Favicon

This extension does not override the browser favicon. For JupyterHub deployments, favicon branding is typically configured at the JupyterHub level - refer to your JupyterHub configuration for how the hub overrides favicon for individual user servers.

## Uninstall

```bash
pip uninstall jupyterlab_branding_extension
```
