**Is your feature request related to a problem? Please describe.** It's kinda hard to see the PROTIP and TRY IT sections. They stand out only with the bold text. **Describe the solution you'd like** I'd like for these sections to be highlighted in some way, perhaps with a graybox or colored line and icon. https://github.com/chdemko/pandoc-latex-admonition should be able to do this but when I tried it, I got build errors.