Template:UnitDisplay
Appearance
When the signal's physical unit is displayed, it is represented as a white bar if the dark theme is selected, and as a black bar if the bright theme is selected.
In the example, there are white markers above and below the bar, indicating the range corresponding to the value written in the bar. These markers may be missing; then the range corresponds to the height of the bar itself.
Finally, the physical unit may be displayed with a marker attached to the bar:
This display is used for nonnegative signals. Here, the physical unit corresponds to the distance of the marker to the signal's baseline.