U+25D9 "◙" Inverse White Circle Unicode Character

U+25D9 "◙" Inverse White Circle is a typographic symbol that represents a circle whose interior is filled with a solid, often black or dark, color while retaining a white or empty circular border outline. It is part of the Geometric Shapes block in Unicode, and its design functions as a visual complement to the standard white circle, often used in mapping, data visualization, user interface elements, or decorative text to indicate an active, filled, or negative space state.