Very nice. Though it doesn't apply the font for me on Firefox 19, Ubuntu Linux. Chromium works though.
Checking out Google Web Fonts for appropriate hand writing fonts I noticed that all the good/suitable ones seems to be by the same person, Kimberly Geswein. I can't seem to link to all her fonts via a URL but searching for "Kimberly" brings them all up.
Before clicking I thought this was a service where you can paste a snippet in any programming language and it gets automatically rewritten to FORTRAN 77 (with a few random bugs added).
Phew, for a second there I thought this was going to be what I'm trying to create, namely an online repository for functions within an executable environment, plus dependency management. Gist + play.golang.org + Cloud9 in one.
One suggestion: handle excess indentation. If I copy code from something and it's been indented 3-4 levels, it's pushed almost all the way (if not all the way) off the picture.
Love the support for Solarized, by far my favorite color scheme!
This is what the developer equivalent of Dribbble should be!
Gorgeous work. I hope this means people will finally use proper presentation slides with syntax highlighting.
EDIT: I will say this, though: the thumbnail settings are so small, they could basically be text. The syntax settings are easier to make sense of, but I suggest just turning the remaining settings into text/buttons and instead use a placeholder example with the chosen settings.
I know it would be very difficult, but I also know it's possible, so what about live preview? I generated something, it wasn't as good as I hoped, and I wish I could tweak it a bit.
If not, maybe I'll try to hack this with <canvas> this weekend...
[1]: http://en.wikipedia.org/wiki/APL_(programming_language)