What 🭸 means
It filled one row in a fixed text grid.
Block graphics arranged whole character cells, not pixels. Partial blocks let early computers sketch graphs and simple shapes.
The Unicode proposal maps it to position 43 in Commodore PET/VIC-20 and C64/C128 sets. PET dates to 1977; later systems kept this graphic role.
How is it different from a line?
It belongs to an eight-row cell.
Horizontal scan-line characters use nine-row cells. Mixing the grids can misalign a composed drawing.
Don't confuse it with
4Combination ideas
1Questions people ask
1Why does 🭸 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 🭸
🭸\1FB78Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.

