I noticed that the downloads for the style prosilver (CDB) still offer the link to "Colorize it".
The service no longer exists and the links to it lead to "Iconify". The domain "colorize.it" no longer exists.
My 2 cents: Whether an extension is in the CDB says nothing about its quality. It is more important to read the support topics for it. Better to avoid authors who do not answer support questions themselves, who do not update their stuff, and who do not fix bugs for years.