I still feel like it's wrong. I see for "orcas" 190 active and 106 inactive. From my point of view, I would expect the red to be bigger than the gray, yet it's reversed. But maybe I'm just misunderstanding what the relative proportions of the two colors is trying to convey.

Oh, nvm, I see. It IS because you're using a logarithmic scale. But in such a case, trying to show color this way is misleading at best, I think.