I just took edibles daily for ~5 weeks. I haven't taken them for ~1.5 weeks and my perception has completely changed. They pulled me out of my head and thoughts, I am now much more aware of my body sensations and visually aware of the things around me, colors, angles, layouts. It feels like a completely different world.
In my early 20's I had similar experience that I would have absolutely described has hppd. I smoked heavily for ~6 months and when I stopped it was so unsettling and caused me extreme anxiety and mental anguish; my visual perception of the world was completely different. There was a 'before' and 'after' perception and my mind couldn't accept it. I had crippling anxiety, would avoid people, couldn't hold a job, would have panic attacks and believed I was going crazy. It was literally hell.
But it is not the same with the effects of the mushrooms. My visual perception has significantly changed. The day after, the tree I see from my kitchen was not the same.
I think you just learend to pay attention to nuance in color and color combinations. I had similiar experience without psychedelics after taking a course on color and color composition by a graphic artist. The course was a combination of traditional color and composition theory with art therapy.
My perception was never the same after, i learned to find joy in stopping for a moment and contemplating the things i see. Even if it is a trashcan with peeling layers of fading paint.