Chart x-axis line rendered at the bottom horizontally to display group names under each bar.
Default width of one item. Used to calculate initial view.
Show/hide facet axis.
Maximum width of one item.
Height of the x axis.
Configures the title for the facet axis.
Note that the title shares space with the facet axis labels. You might need to increase the value of
property so that the labels are not hidden by the title.
The width of a single unit that will trigger a zoom-out action when the user swipes up.
Note that the other trigger for zoomout is to swipe up until all the bars fit in half the width of the chart. In this case this unit width might not have been reached.