[racket] Fun with flomap: old folksy CRT televisions!

Thanks for the new Flomap library in Racket 5.3! I've been having tons
of fun making old TV screens using this and the icons library:
https://gist.github.com/3495088

(televise some-bitmap)

See an example here:
https://raw.github.com/gist/3495088/3de970869126047be245696c14e495e7258ce837/acat.png