The fairly newly added Auto+: Retro premium presets appear to be based off analog film. "AR10," for example, looks an awful lot like Ektachrome. I wonder if these individual presets are inspired by actual analog film stocks, or if they're meant to be "generic" retro looks. If the former, I'd be interested in learning more.
Thanks. I did actually those blog articles previously. I was pleasantly surprised that photography Sean Flanigan helped develop the "Vintage" set (I've been following his photography for over ten years). There aren't any blog articles that mention the new "Retro" set, which is the set I was curious about.