Customize color for non floatingHeader

[pkozlovskiy]

Hardcoded color in this line
color: widget.floatingHeader ? null : Color(0xffF7F7F7),
make my designer wery sad(
Please extract in constructor or create builder for all container.

[Dimibe]

@pkozlovskiy Just set floatingHeader to true and define the color in your groupSeparatorBuilder by wrapping it with a container.

I will rework the floating header option soon and let you know.

[Dimibe]

@pkozlovskiy In version 1.1.0 a new option stickyHeaderBackgroundColor is available. With that option you can set the background color.