MXP is a very handy protocol which can be used to allow mudders to click on text, embed graphics, and give contol over font, color, and text.

This might not be a high priority, since only some the most advanced codebases support it, but it's a very handy feature. Given that Savitar already parses html, this should not be difficult at all to implement.

The protocol is documented here:
http://www.zuggsoft.com/zmud/mxp.htm

The Dawn of Time codebase supports MXP. www.dawnoftime.org. If you wish to see a mud in action, we've got something set up at:
mf.dawnoftime.org 1111
Ask anyone about MXP, and we can show you around.