The Flutter stacked bar charts visualize the data with y-values stacked over one another in the series order. It shows the relationship between individual values to the total sum of the points.
Group a series with another series using the group name in a stacked bar chart. Group the series with different stacking name separately.
Modernize the UI by applying the rounded corners to the stacked bar chart.
The stacked bar chart provides an option to customize the spacing between two rectangles.