doctrine/doctrine-sphinx-theme — pull request #4 by DavidPrevot (2014-05-31 17:52:06+00:00)
Title: Strip away copyrighted ICC profile from images

These images embed a non free ICC profile that doesn’t allow
modification:

http://web.archive.org/web/20020603153925/srgb.com/usingsrgb.html

Please use the proposed versions stripping away this copyrighted binary
profile, probably embedded by an image software at one time:

exiftool -icc_profile"-<=" $files

I’ve checked the resulting images and trust they are identical to the
original. As an additional improvement, the files are smaller that way,
like the other similar ones on this directory.

Some more background on the issue:
https://lists.debian.org/debian-devel/2014/05/msg00339.html