So we're back to a white haired Kaneki. I guess the progression thus far has been:
Black-->White-->Multicolored-->Black-->White
God, this reminds me of Revan. Anyhow, what the hell even happened this chapter? I'm trying to read the panels of the fight, but I can't see what's going on at all. What does OWL even do?
Iirc, following the fight with Tsukiyama, his hair turns blood red due to the blood that seeped into it. It only looks black later due to other reasons before reverting back to white.
Yeah, that's sometimes how it tends to go with fight scenes in the TG series. The OWL was in the compactor and transformed into what we saw in the beginning of the chapter to bust it all up. Then she killed those mooks up on the upper levels.