The tag o o says it is restricted to eyes which are white circles.
In spite of that, some black circles are found there: post #1004831, post #997945 and more.
Maybe a new tag should be created for the 100% black round eyes? (Or, perhaps, the description of o o should be changed to be less strict, allowing both white and black eyes, indiscriminately, together?)
If this question is answered, post #1005090 will gain a proper eye tag; it does not have any, now.
Updated by jxh2154