dont think so. sure, today it looks like a reference because they are both of 90s computer graphic design but in the days of when SEL was made those designs were common.
If it is I'd certainly like to read it. Why not try getting in touch with some of the staff that worked on the show? I have no clue how, but I think it's worth a shot.
Same guy here. I emailed Chiaki. He doesn't seem to remember what, if anything, the book was based on. It may be nothing but maybe somebody else on the writing staff knows what it is. Might be harder to contact them though.