What means
It marks the lower-right cell of a four-part mosaic. “Separated” means the dark patch leaves a narrow gap.
Teletext, a British TV text service, developed in the early 1970s and used mosaics for simple graphics, with cells joined or apart. Home computers also arranged blocks like coarse pixels, a method called semigraphics. Encoding separated cells separately lets text and emulators preserve their gaps.
Don't confuse it with
1Questions people ask
1Why does this symbol show as a box?
It can be a font issue: the active font may lack this glyph. Cascadia Code added the separated quadrant range in April 2024.
How to type
𜰨\1CC28Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
