OptionalbackgroundPlate behind the row's text, for legibility over candles. Off by default: the row has never had one, and turning it on is a deliberate choice.
OptionalbackgroundPlate color. Defaults to the theme background.
OptionalbackgroundPlate opacity, 0..1. Default 0.8, matching the hover plate.
OptionalbarChange over the hovered bar: readings tagged field: 'change'.
OptionalchartThe OHLC readout: readings tagged field: 'ohlc'.
OptionallastChange since the previous close, from status.lastDayChange.
OptionallastThe source's own reading (untagged values). This is the scales-and-lines "last value label" control, which lands here because the legend is what draws that number on this row.
OptionallogoSymbol logo, when status supplies one.
OptionalmarketSession state from status.marketStatus.
OptionaltitleThe bold name. Also the "name label" switch for an indicator row.
OptionaltitleWhich name the title shows. Default symbol.
OptionalvolumeReadings tagged field: 'volume'.
Per-field switches for the status line. Every one defaults to on, so the absent option object reproduces the row exactly as it drew before these existed. A field whose data is missing draws nothing whether it is on or off.