arcRatios property
Ratio of the arc widths for each of the ring drawn in the sunburst. The arc ratio of each ring will be normalized based on the actual render area of the chart. If the maxDisplayLevel to be rendered is greater than the arcRatios provided, the last value of the arcRatios will be used to fill the rest of the levels. If neither arcRatios nor arcWidths is provided, space will be distributed evenly between levels.
Implementation
final List<int>? arcRatios;