That version of Tux seems to be an arbitrary glossy version. There are others, e.g. https://en.wikipedia.org/wiki/Tux_(mascot)#/media/File:TuxFl...

Also interesting, Tux is not the logo. From the same wikipedia page:

> Since Tux won none of the three competitions that were held Tux is formally known as the Linux brand character and not the logo.