I never did comparisons on a white bucket like yours, but I read on here some time ago that the Toyota brand WS turns purple with use, even though it starts out red. While pouring it into the funnel, I always thought the clean WS had a little more of a raspberry tint than most ATFs.
I bought a Vibe with about 29k miles and drained the pan soon after. That fluid looked about like your "before" comparison, with the addition of a creamy gray cast. I changed it again soon after and took a sample, which came back flagged for high aluminum.
I immediately dropped the pan and did a filter change, then started draining the fluid every oil change and sampling once per year. Toyota's WS was getting expensive with those regular changes, so I eventually switched to Maxlife. Aluminum kept trending down and the trans worked fine until the insurance company totaled it for a parking lot wreck last fall.