SfSparkBarChart widget renders the spark bar type series. Here, we have depicted the options to customize the highest, lowest, negative, first, last point colors and for the axis crossing. Initially, declare and initialize the SfSparkBarChart widget and bind the data source. The color property is used to customize the appearance of the bar chart. Using the firstPointColor and lastPointColor properties, customize the appearance first and last point colors of the bar chart, respectively. Using the lowPointColor and highPointColor properties, customize the appearance of the lowest and highest point colors of the bar chart, respectively. Use the negativePointColor property to customize the appearance of negative values alone.
Documentation: https://help.syncfusion.com/flutter/sparkcharts/sparkcharts-types#bar-chart
To run this application, you need to first clone or download the ‘customize sparkcharts flutter’ repository and open it in your preferred IDE. Then, build and run your project to view the output.
For more help, check the Syncfusion Flutter documentation, or Flutter documentation.