I don't know why you exactly use --depclean for, but I just wanted to have a quick lookup which packages were safe to remove. Then I saw "Number to remove: 350". Hehe. That might be "safe" to remove but the system won't be same after I delete kde-base/kdm etc. I didn't want to deal with "searching on gentoo forums" stage and wrote a dirty one liner to see which packages are "really" the last one on the dependency tree.
Pure boredom. I edited Suse.Logo.Green KDM4, Ksplash4 and powered_by_gentoo bootsplash themes. Main concept is this: Also the links: KDM: https://www.pling.com/p/997973/ Ksplash: https://www.pling.com/p/1000596/ Bootsplash: https://www.pling.com/p/1222785/