Metadata-Version: 2.4
Name: jupyterlab_branding_extension
Version: 1.0.5
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
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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

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

## Features

- **Custom main area logo** - replace the default JupyterLab 3-dot logo with any SVG or raster image
- **Configurable via traitlets** - set `logo_uri` in `jupyter_lab_config.py` or read from `JUPYTERLAB_MAIN_ICON_URI` environment variable
- **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
import os

# From environment variable (set by JupyterHub or manually)
c.Branding.logo_uri = os.environ.get("JUPYTERLAB_MAIN_ICON_URI", "")

# Or set directly - local file path
c.Branding.logo_uri = "/path/to/your/logo.svg"

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

# Or set directly - 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.

## How It Works

The extension has two components:

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

## Uninstall

```bash
pip uninstall jupyterlab_branding_extension
```
