Mostly Filled Circle

The legend assigns the mark its value. A Harvey ball chart uses differently filled circles to summarize a rating, status, or progress. The same three-quarter circle can mean different scores in different reports.

Harvey L. Poppel used quadrant charts in Booz Allen Hamilton's internal reports in the 1970s; the method later appeared in client presentations and Consumer Reports magazine. Unicode's wider geometric-shape set draws on standards from Japan, China, and Taiwan. That shared repertoire history is not an origin story for ◕ itself.