Add custom logo in top right corner ?

[oscar6echo]

This is what I try to achieve - with a sample logo:

To do that manually, I open the console and paste:

var svgStr = `
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    <title>React Query</title>
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var doc = parser.parseFromString(svgStr, "image/svg+xml");
var svgElt = doc.documentElement;
svgElt.setAttribute("id", "viewer");
svgElt.setAttribute("width", "165px");
svgElt.setAttribute("height", "");

var wrapper = document.createElement("div");
wrapper.setAttribute(
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wrapper.appendChild(svgElt);

var anchor = document.querySelector("#jp-top-panel");
anchor.appendChild(wrapper);

My questions are:

• What is the recommended way to do that ?
• via an extension ? then what is the most relevant example in this repo ?
• Is there a placeholder that I can/should use ?
• Which Jupyterlab tokens, if any, are relevant ?
• If I wanted to hack it outside the Jupyter framework, which global event should I listen to trigger the code above ?

I would be grateful for any hint/pointer.

[bollwyvl]

Jupyterlab-fonts would do this with "just" an overrides.json, though there might be some flicker. https://github.com/deathbeds/jupyterlab-fonts To hook it as early and and correctly as possible, I'd probably do a theme, starting from the cookie cutter: https://github.com/jupyterlab/extension-cookiecutter-ts It's likely it could just be a background-image, with the svg inlined by webpack, but would enable much deeper customizing, both of css and various other techniques (e.g some global dockpanel options). Post-build patching of index.html (e.g. by just adding a style tag) would also work, but would always be fighting upgrades.

[fcollonval]

In JupyterLab v4, right of the main menu bar will be a customizable toolbar. Defining an extension that inject an item in that toolbar will be the recommended way.

[oscar6echo]

@bollwyvl @fcollonval thx again for your fast replies. Much appreciated !

I played around with the cookiecutter and finally found that a frontend extension was a simpler way to do it, compared to a full fledged theme.
For reference: https://github.com/oscar6echo/jupyterlab-add-logo

What is today's rough estimate for Jupyterlab v4 release ? decently stable beta and official release ?

[fcollonval]

What is today's rough estimate for Jupyterlab v4 release ? decently stable beta and official release ?

The goal is to get a target by the end of July. Then once the beta is out, expect the official release ~8 weeks later.

[ericsnekbytes]

There's a PR with an example of something similar here.