This doesn't appear to have any effect?

True. Removed it.

I'd rather view the JSON directly.

All the sample JSONs are below, in the Data section. I included the download button here as a convenience. I think I’ll just remove it. I need to move the data section to the frunt, just after the main chart and its controls.

I feel that a slider is a poor choice for this kind of selection, as it would be helpful to view and select the examples by name. I'd recommend to default to a select or radios, and maybe enhance them via additional prev/next buttons.

Thanks for your feedback. I agree. It is a remnant from earlier versions. I have since moved all examples to their own separate notebooks. I left this slider in for historic reasons. I do need to clean this whole set up someday.

Hi Martien, can these custom libraries be imported through npm?

Hi Pol, not through npm. Only through embedding the whole notebook. Please see https://observablehq.com/@observablehq/embeds