Draw shading rectangles on a plot to indicate nighttime hours.
The monitor_timeseriesPlot function uses this function internally when
specifying shadedNight = TRUE
.
addShadedNight(timeInfo, col = adjustcolor("black", 0.1))
dataframe as returned by MazamaTimeSeries::monitor_timeInfo()
Color used to shade nights.
No return value, called to add day/night shading to a timeseries plot.