libpng warning extreme chrm chunk cannot be converted to tristimulus values code example

Example 1: libpng warning extreme chrm chunk cannot be converted to tristimulus values

mogrify *.png

Example 2: libpng warning extreme chrm chunk cannot be converted to tristimulus values

pngcrush -n -q *.png
mogrify *.png

Example 3: libpng warning extreme chrm chunk cannot be converted to tristimulus values

pngcrush -n -q *.png

Example 4: libpng warning extreme chrm chunk cannot be converted to tristimulus values

mogrify *.png
pngcrush -n -q *.png