subliminal color images

[Dave Long]

>> What kind of programs fit in 75 kilobytes?  Most of the things I have
>> are either much bigger or much smaller, and lots of them are weighted
>> down with all sorts of JPEGs and stuff.

Regarding the weight of all sorts of JPEGs, it appears there's a 64K 
demoscene that makes good use of procedurally generated content:

http://www.maa.org/editorial/mathgames/mathgames_08_16_04.html

http://www.pouet.net/prodlist.php?page=1&type=64k&order=views

http://en.wikipedia.org/wiki/.kkrieger

-Dave