(keitai-l) "GAMA" chunk in PNG used?

Is the GAMA chunk in PNG images used on phones?

PNG allows a chunk called GAMA which controls gamma levels (ie brightness) of an image to help make the image look consistent across multiple display devices (PC monitor, cellphones, etc).

For MIDP apps, we always strip this chunk out of the PNG to save on filesize.

Is this GAMA chunk even used anytime?


Thanks,
KO