I thought you couldn't do this, or at least the base code of Quest would have to be changed to act like this!

Just look at/play this game! It has big pictures! Does it use JavaScript?
http://textadventures.co.uk/games/view/-cYc_syqnkiTv_ya9sSzmw/dragon

Edit: Nevermind, sorry.

It is right there in the docs!

http://docs.textadventures.co.uk/quest/multimedia.html
http://docs.textadventures.co.uk/quest/images.html
http://docs.textadventures.co.uk/quest/images_on_the_fly.html

This appears to be the standard picture frame, as far as I can tell. Does it appear different for you?

To enable it, the option is "Picture frame: a static picture that appears above text. Pictures can be set per room, or using a script command" at the bottom of the game's "Interface" tab.

Oops. Sorry, The Pixie.

Ah. So it's at the bottom of interface! Okay.

Thanks!