Geometric Shapes is a Unicode block of 96 symbols at code point range U+25A0–25FF. U+25A0–U+25CF The BLACK CIRCLE is displayed when typing in a password field, in order to hide characters from a screen recorder or shoulder surfing. U+25D0–U+25FF The CIRCLE WITH LEFT HALF BLACK is used to represent the contrast ratio of a screen. Font coverage Font sets like Code2000 and the DejaVu family include coverage for each of the glyphs in the Geometric Shapes range. Unifont also contains all the glyphs. Among the fonts in widespread use, full implementation is provided by Segoe UI Symbol and significant partial implementation of this range is provided by Arial Unicode MS and Lucida Sans Unicode, which include coverage for 83% (80 out of 96) and 82% (79 out of 96) of the symbols, respectively. Block Emoji The Geometric Shapes block contains eight emoji: U+25AA–U+25AB, U+25B6, U+25C0 and U+25FB–U+25FE. The block has sixteen standardized variants defined to specify emoji-style (U+FE0F VS16) or text presentation (U+FE0E VS15) for the eight emoji. History The following Unicode-related documents record the purpose and process of defining specific characters in the Geometric Shapes block: See also Unicode symbols Dingbat Box Drawing (Unicode block) Block Elements (Unicode block) Box-drawing character Tombstone (typography), the end of proof character Geometric Shapes Extended (Unicode block) Miscellaneous Symbols and Arrows (Unicode block) includes more geometric shapes Miscellaneous Symbols and Pictographs (Unicode block) includes several geometric shapes of different colors Mathematical operators and symbols in Unicode References Unicode blocks Geometric shapes Geometric