What does the purple check mark box represent in Approvals widget?

[mdeancherry]

What is this purple box with a check mark supposed to represent? It shows up in the "Awaiting My Approvals" widget on the home page as a part of the thumbnail for a proof. Based on an admittedly cursory review, it seems like it's on all the proofs that I'm looking at so I'm not sure what it's supposed to be indicating.

[skyehansen]

it just means that it is a Proof Approval request. There are different icons for the different types of approvals or requests (e.g. I have an access request for a dashboard right now, and it has a little dashboard icon. My approval request for an issue has a little exclamation mark.)