I'm in the process of updating all of my collections to Racket. I have most of the smaller ones done - animated-canvas, describe (with documentation this time), packed-binary, and uuid - with only table-panel left to go. Right now I'm finishing up the documentation for my new sesame library - an interface to the Sesame RDF triples store - that I'll release this weekend. [I need it for my 'real' job.] Then I'll move on to the 'big three' - science, simulation, and inference. They'll take me a while because of their size and complexity.But, I'll redo the graphics to PNG format at that time. <div class="gmail_quote">On Fri, Oct 29, 2010 at 6:45 PM, John Clements <<a href="mailto:clements@brinckerhoff.org">clements@brinckerhoff.org</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Your science collection stores images as bitmaps. Storing them as png's instead reduces their size by about 99%. This is lossless, so there's no reduction in quality. If I'm doing the math correctly, this could reduce the size of the installed science collection from about 78 megabytes to about 7 megabytes (it looks like there are three copies of everything). John </blockquote></div>