Comment 7 for bug 1173622

I've found a 128 icon in the Mac OSX icon file of the source tree! :)

http://boinc.berkeley.edu/trac/export/HEAD/boinc-v2/clientgui/res/BOINCMgr.icns

It contains icons size 16, 32, 48, and 128 (no 256, go figure). Converting it to PNGs requires 'icns2png' from 'icnsutils' package.

@Saikrishna: I've updated my script to install them all, including the 512 TIFF from the url in original report, which also has transparency. The script skips duplicate sizes, so icons 16, 32, 48 which exists in both are taken from the windows ICO. And don't forget to install icnsutils, or the 128 icon will be skipped:

sudo apt-get install icnsutils