I looked through the FAQ of the release notes, googled for similar questions, tried to view the src-view of the release notes (not available) and looked at some updates surrounding the admonition functionality that was introduced in an earlier version.
What I’m trying to do
In this gif you can see some coloured boxes and collapsible boxes which look very neat. I’d love to have these available for my notes, too. Admonition-Boxes just look a little clumsy.