[plt-scheme] Antialiased ascii graphics

Recently the "add large letters" became "antialiased".  Large letters
used to be composed exclusively of the @ charactor.  Now it uses a
variety of chars #,@,:,*.  This new way causes a bolder, more readable
look in the sidebar that's really cool.  However I'm having dificulty
recognizing the large text generated in the source code window. 
(Dificult meaning I usually have to read it one charactor at a time,
rather then a word at a time).

Would it be possible to keep a option to insert large text in the old
"blocky" way?

Corey