Oh, sorry. I thought you meant in the curator's overlay. I don't remember what post I took that image from, but I think the total and organic values are the same in that one - i.e. it had no bot votes.

The slight difference in shade/color between the top and bottom graph is because the organic value is laid on top of the total value.

Here's the same visual from this top-level post - which received a couple votes from bot accounts.

And just for fun, here's one with a @null beneficiary setting (and no bot votes).