It's normal for a human to comment on how dark or how quiet a place is, but I don't think I've heard anyone comment on the absence of odor. “It doesn't smell like anything in here” just doesn't sound right. I've established elsewhere that yinrih frequently comment on ambient odors. I wonder if color or brightness might be as secondary to them as to us.

Also, for humans, despite how small a part smell plays in our experience of the world around us, olfaction is the sense most strongly coupled with memory. I wonder if yinrih might find colors just as evocative as we find odors.