[plt-dev] scribble with gui

Matthew Flatt wrote:
> `scheme/gui/base' is not available when setup-plt runs. The "Quick"
> document works around that by having two modes controlled through an
> environment variable: one where images are rendered to PNGs (to be run
> when scheme/gui' is available), and another that just uses the PNGs (to
> be used by setup-plt).
>   

Thanks. I found the doc here 
http://docs.plt-scheme.org/scriblib/gui-eval.html

Chongkai