webGL2 in the thumbnail images ?

Some of my recent notebooks like

https://beta.observablehq.com/@enkimute/quadric-conformal-geometric-algebra

have really pretty graphics yet are not showing the thumbnail … I suspect that webGL2 is not working for the thumbnail generator - any plans on integrating this support ?

Cheers!

As noted here, our thumbnail daemon is currently quite limited. We plan on replacing it with something higher fidelity, and also allowing the author more explicit control over the choice of thumbnail images when publishing. However, I don’t have a timeline on when these improvements will ship, so in the meantime you’ll need to insert a static header image near the top of the notebook if you want explicit control over the thumbnail.

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