I'd love to see a few more options for the markdown callouts.

Currently we have

:::warning | Red

:::tip | Purple

:::note | Yellow

But I'd love to see three new options. Blue, Green, and Grey. Perhaps it could be

:::info | Blue

:::success | Green

::: (blank) | Grey

If we aren't opposed to breaking changes the naming convention of these callouts could be altered to match Github's markdown alerts.