Modified Google Logos With Search Results

I’ve just noticed that Google now shows it’s modified logos on search results pages as well as on the main page. By modified logos I mean the ones they use on special occassions like when they cover it with snow at Christmas. They used to only show those logos on the main page but used the standard logo on search results pages. I guess with Firefox’s growing popularity more people are using keyword searches and the search box so they don’t see the main page very often any more. I know I don’t.