Over time, I slowly learned to appreciate not just key OS versions (9.2.2, 10.2.8, 10.4.11, 10.5.8 etc.), but also every subversion of a system, as well. For example, reportedly Classic behavior prior to 10.2.8 is desirable in some cases, and some version of Panther prior to 10.3.9 reportedly allows the creation of DMGs that are still compatible with Mac OS 9's PPC-only Disk Copy version. In the end, it's good to archive and master all the bits and pieces that make up these wonderful systems... So it doesn't surprise me that Puma (and earlier) might contain some nice blingy stuff absent elsewhere. Repeat the process long enough, and there will be room for appreciation even for beta pre-System-1 Mac OS, I'm sure.
(There's an image of that in the MG, btw. Thing is from 1983.)