Does Ipywidgets tooltips support HTML markup?

Sorry, new to ipywidgets and can’t find out how to insert bold/italic/equations the tooltips. Also would be nice to add images, links, in the tooltips.
Jon (aka Rick).

Hello @JonVoight,
I went ahead and tried (using IPython.display Markdown) and it looks like the tooltip only expects a unicode string:

TraitError: The 'tooltip' trait of a Button instance expected a unicode string, not the Markdown <IPython.core.display.Markdown object>.

You can find an ongoing discussion that is tangentially related to this at the link below:

And a recent request that directly pertains to your post:

Right - the tooltip uses the standard browser tooltips, which only support text.