Font config (feature request)

[k3a]

I miss the ability to change the font size and family of displayed messages. It could be a global settings in the app but some message-specific attributes would be even better.

I have some notifications which would benefit from a smaller, fixed-width font.

[binwiederhier]

I believe this is a duplicate for #310, so I'm closing it as a dup. I'm assuming you mean formatting of the text on a per-message basis (bold, italics, verbatim, heading, ...), and not global setting to increase/lower the font size for accessibility reasons.