I'm amused she said they included it "in case somebody out there liked ugly bright red and yellow" and that "the 'Fluorescent' theme was also pretty ugly, but it didn't have a catchy name, so I've never heard anything about it."

Because I loved the Fluorescent theme.

Flourescent looks so of it's time, it fits right into an age of acid house, where you could go hang out in the hologram shop [1].

[1] - E Is for Ecstacy - BBC Everyman Documentary https://youtu.be/jyrhcjRc3TU?si=Qn9qG2z8wQzD-llJ&t=812

I remember playing with these or similar back then, and if you used it for awhile to just became normal.