Love the Jerbitron chapter -
Question on major or minor magical foci: Beauty - major or minor magical foci.
Without getting too metaphysical, beauty would seem to fall within Imaginum - an enhancement of image or the perception of it. But it would also seem to cross into Corpus/Herbum/Terrum... (e.g., enhancing beauty of a person, painting, sculpture). Leaving mentum asside (as the reaction to the beauty), a major focus on beauty would enhance the targeted item. A minor focus of beauty would embrace the beauty of a particular species - person, painting, music, building, garden,......
The thought is that a magus could use this focus to either enhance the appearance of a thing or the focus could direct the creation (CR) or crafting of a thing (RE) or even transforming something to beauty (MU) (all of course with the proper finesse roll).
Does this make sense?