i really loved the concept of midnight/suspected npd, and i saw that someone made a twilight bpd flag inspired by it, so we decided to come up with similar terms for the other personality disorders!
nobody has to use these, i made this list for fun and because i plan on designing flags around them in the future and i wanted to have consistent theming for them
cluster a: umbra ppd, penumbra szpd, antumbra stpd -based on the three different parts of a shadow
cluster b: dusk aspd, twilight bpd, midnight npd, dawn hpd -based on different times of night/transitions to and from night.
cluster c: bathal dpd, abyssal avpd, hadal ocpd -based on layers of the deep ocean.
edit 12/3/2025: also came up with terms for persodivergent, pd-ts, ospd, and pdnos! shadow persodivergent -based on the common theme of all the terms, and the terms shadowgay and others. the most universal form of darkness.
stygian pd-ts, silhouette ospd, void pdnos -just other words for darkness. i chose stygian for pd-ts since it's a distinct form of darkness with distinct origins, silhouette for ospd since it's a word for a distinct shape lacking specific features, and void for pdnos since it's a 'lack' of specificity -- all of them associated with the base theme of darkness.