I'm currently using Racket 6.1. For some time now, when editing Scribble
files in DrRacket, I've been getting "file has changed on disk" messages
when trying to save or render - not consistently, just every so often.
These are files I am not editing in anything other than DrRacket. I
click "ignore" and everything works fine, but it is annoying.
Just now, when rendering a Scribble document, I see in the Interactions
window the error "libpng warning: iCCP: Not recognizing known sRGB
profile that has been edited". The rendering proceeds just fine. This is
rendering to PDF using some included images that have been created using
OmniGraffle. The same images used in render to HTML do not give such
warnings. --PR
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