Google turns the banal 'Google Custom Search' text in CSE search box to a colorful Google Logo with a unbold text 'Custon Search'. A great new step to improve the look-n-feel of CSE.

Official Google Custom Search
http://googlecustomsearch.blogspot.com/2007/03/better-branding-part-ii.html

gSpy
http://gspy.blogspot.com/2007/03/google-cse-gets-better-branding_07.html