Bar rendering mode: 'default' draws rectangles, 'og' draws a column of stacked circles.
Corner radius for 'default' bars.
Solid fill color. Mutually exclusive with fillLinearGradientColorStops.
Gradient color stops (Konva format). Used when fill is not set.
Measurement this style applies to (matches ObservationItem.measurement).
Overall bar opacity (0–1).
Horizontal padding inside the bar's allocated width. Single value = symmetric; tuple = [left, right].
Stroke color drawn around each bar.
Stroke width in pixels.
Visual style for a single measurement series within a bar-chart track. Matched to data by
measurement; unmatched measurements use defaults.