Comment 2 for bug 1173622

Humm, I can fix that... I'll clone the debian git repo, add the icons and update the desktop file accordingly

Meanwhile, Saikrishna, I created a script for my personal use that you might find useful: it downloads all the icon files in that page you mentioned,convert to PNG, and installs them, adjusting the .desktop file.

All operations are made for current user only, so no sudo required. The original boinc icons and .desktop are not modified, everything is saved in ~/.local/share, so they will have higher precedence than the system ones and be picked up by Ubuntu. Logout may be required for changes to take effect.

Be aware that these icons, being a BMP, have a white non-transparent background... and while they look nice (the 256 one is *gorgeous*), a fixed white background is not optimal. And don't try to add `transparent white` to `convert`... it works, but will look even worse :P

Have fun:
https://github.com/MestreLion/scripts/blob/master/runonce/setup/boinc_icons