When someone says "imagine a pink elephant in the room" I don't see a pink elephant, but instead have an inner dialogue to the effect of "ok, so there's a pink elephant in the corner." I may also recall an image of an elephant, but it's not pink and it's not really in the room.
When there is a concrete thing that I have a memory of ("picture a squirrel", specific things from holidays, etc.) I can see flashes of still images from those. I don't see a generic squirrel, but a specific image/memory of a squirrel I have seen.
I have general placement/shape awareness but not so much colours or other specific details. I can infer things like colour from context, or have a thought to the effect of "that building was white" but I don't really see the building as white.
But according to people who have this giant library of colours in their head, I often get the associations wrong or wrong-ish, because my ability to even care about colours is pretty low.
For me, recall is bad, but recognition is OK - things 'come back' easily with hints or photos. But I guess that's how memory tends to work, and motivation to plenty of pictures/videos.
I suffer from it quite badly. I can remember broad and important details, but struggle to remember even moderate details from anything beyond the past 2-3 months, with sharp falloff after that.
Once I started using Immich and was able to see my old photos from across adulthood and childhood (I used to just dump them onto HDDs), I experienced a sharp reconnection with myself and my past.
Maybe they could find something similar (Apple Photos, Google Photos, Immich, etc.)!