I have used deckset for all of my presentations[1]. It's fantastic, and forces you to follow Zach Holman's rules[2] about slide typography, which is basically "you can't go too big."

[1]: https://speakerdeck.com/gammons [2]: http://speaking.io/design/typography/

The presentations look wonderful. Zach has constantly been my inspiration to make better slides. Almost ALL my slides[0] incorporate some of his teachings :)

[0]: http://speakerdeck.com/shrayasr

I recently discovered Deckset and I must say I was very happy with it (for markdown editing + PDF export, with code highlighting).

Example of use: https://speakerdeck.com/thbar/de-rails-a-phoenix-retour-dexp...

This looks amazing. Is it a custom theme, perhaps?

Thanks! It's a built-in theme which I chose carefully :-) (and actually & afaik, there is no custom theme support at the moment in that app).

Wow, Deckset looks awesome. I've never looked for something like this, but thanks for mentioning.

You're welcome. The road from here only goes up! Have fun, mac guy :)