Themes do not work well when `legend = "top!"`

Default color for single-group displays: Black vs palette?

Slightly inconsistent y-axis title gap (depending on tick label widths)

`palette.qualitative` does not accept a function

Vignettes: direct labels example no longer working

Facets: Strip text not vertically centered within allocated space

Support plot caption

Unhelpful error when `facet = FALSE, facet.args = list(free = TRUE)`

Incompatible with arrays

xaxs/yaxs not restored when set