This is eerily similar to what I have experienced. I seem to notice the color of flowers, movement of the leaves whilst wearing polarized sunglasses and some infusion of THC.
". Polarized lenses are not recommended for use in the aviation environment. While useful for blocking reflected light from horizontal surfaces such as water or snow, polarization can reduce or eliminate the visibility of instruments that incorporate antiglare filters. Polarized lenses may also interfere with visibility through an aircraft windscreen by enhancing striations in laminated materials and mask the sparkle of light that reflects off shiny surfaces such as another aircraft’s wing or windscreen, which can reduce the time a pilot has to react in a “see-and-avoid” traffic situation."
https://www.rei.com/blog/snowsports/understanding-goggle-len...
When having stuff to do in downtown, I usually choose routes which are rich green with large old trees and/or houses whith really nice front lawns bursting with colors by the planted flowers and bushes. Even if it is a slight detour, and thus taking longer to get where I need to be. Though I prefer to be absolutely sober then.
OTOH, walking, or bicyling out of town into the surrounding country, having only the slightest 'buzz' from some weak weed/grass intensifies my perception of the colors, smells, sounds, air currents and temperatures. I'd guess 'microdosing' would be similar?
Oh, and don't forget polarized sunglasses with blue/green tint. That is upping the visuals a notch. Even without direct sunhine, when it's overcast.
Example: the leaves of trees, from afar, or high up in the crown. With bare eyes I see them, but diffuse. With polarized sunglasses I can see every single one of them, their movement in the wind, and even their structure. Similar boost for seeing waves on the river.