The code is not yet in the IPerl repository (it is in a separate
repository), but you can comment on the issue for the feature at
<https://github.com/zmughal/p5-Devel-IPerl/issues/28>. I plan to
incorporate the code into IPerl itself this weekend.
As a side note, inline images now work on MetaCPAN, so you too can use
`<img src="data:image/png;base64,<Base-64-encoded-PNG>` in your POD and
it will work between `=begin html ... =end html` sections.