BarChartRod
BarChartRod class has the following properties:
bg_color
An optional color of a background behind this rod.
bg_from_y
An optional starting position of a background behind this rod.
bg_gradient
An optional gradient to draw a background with.
bg_to_y
An optional ending position of a background behind this rod.
border_radius
Border radius of a bar rod.
Defaults to 4.
border_side
Border to draw around rod.
Value is of type BorderSide class.
color
Rod color.
Defaults to Colors.CYAN.