Very True. The new font looks way better... but I think a font like from a typewriter would suite the letters even better. Maybe these are useful:
Serifenlos
Mit Serifen
Edit: all of them are free fonts, so no intellectual property infringements.

Do you read the text for the letters out of a file or are they "hardcoded"?

It seems to me quite a coincidence but I was doing almost the same damn thing just these days:



It is not a letter but a tutorial, showing two arbitrary images and text.
At first all of the text was hardcoded, but now I read all strings out of an extra file.
Took me quite some time but I hope this will make localization easier, once my project is that far.



For not planning on making a full game you seem to work a lot on that project