ID:1811225
 
(See the best response by Lummox JR.)
I'm working with an onscreen chatbox using maptext right now as a fallback for DreamSeeker. I'm genuinely curious what tags and CSS properties are supported by BYOND's implementation. Is there anywhere we can get a reference for the full list of entities DM supports for this feature?
Best response
Basically it's pretty much anything that's supported in the regular output, but vertical alignment and alpha colors are supported as well.
vertical alignment

This would have saved me a ton of work. Good to know.

Is the <IMG> tag supported?
Yes, images are supported in maptext.

I should clarify that the one thing we don't really handle that output does is links. Because clicking on maptext is an all-or-nothing proposition (at present) we have no real support for handling links.
That's actually perfectly fine, because I'm using a browser hidden behind the map element to display messages. Any mouse events that occur over the text in the viewport get fired back to the browser via output() and then injected into the DOM event model.