I'm have a MacBook Pro (x86_64) with OS X 10.8.5 (fully patched). When I got the MBP, the iTunes icon was a cool blue icon.
Recently, Apple changed it to red. The psychologist tell us red indicates anger, defiance and hostility, and its a bad color. Its why USAir changed their color scheme from the shades of red to shades of grey. I did not like red, but I did not feel compelled to move.
I got updates this week (July, 2015), and Apple changed the icon again:
I despise that cartoony look, and now I am compelled to move. That cartoony look is one of the reason I have held back from OS X 10.9 upgrade for my personal equipment (and even one of the reasons to abstain from iOS upgrades). This is a personal preference, and I understand only a subset of folks feel the same way.
I've been through iTunes preferences, but I don't see a way to change the icons.
How do I change the iTunes icons? Or how do I use the previous, blue icon?
Related, other reasons to abstain from the upgrade includes all the untested features and broken features that got added to 10.9. Quod erat demonstrandum: iCloud Keychain and CVE-2015-1065. My keychain was never at risk through this vector, and it was a conscious decision to avoid the risk.