Change background color

[aliThiban22]

I can't change the background color.

[lkomanetz]

There is a decoration property on CustomDropdown that lets you configure various properties. This is what mine looks like right now.

CustomDropdown<String>.multiSelect(
    decoration: CustomDropdownDecoration(
        closedFillColor:  Theme.of(context).primaryColor,
        expandedFillColor: Theme.of(context).primaryColor,
        closedBorder: BoxBorder.all(color: Theme.of(context).colorScheme.secondary),
        expandedBorder: BoxBorder.all(color: Theme.of(context).colorScheme.secondary)
    )
);