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Techie Turmoil

Fixing those pesky PNGs

I’ve been struggling with PNG colour matching for a while. It’s fine on my Linux boxes, with a standard sRGB colour profile, but on Macs and Win/IE with an ICCP in place, the colours never match up with the CSS colours. This is always frustrating, as PNGs are so nice for proper alpha transparency.

I just found this handy snippet out there in the ether, to get rid of the gamma and colour profile info from PNGs.

pngcrush -d outputdir -rem gAMA -rem cHRM -rem iCCP *.png

pngcrush also optimizes the file and reduces the size, which is nice. Handy little tool.

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