title: How to delete default padding Top and Bottom in ExpansionTile?
body: <p>How to delete default padding Top and Bottom in ExpansionTile ?</p>
  <pre><code>Theme(
    data: Theme.of(context).copyWith(dividerColor: Colors.transparent),
    child: ListTileTheme(
      dense: true,
      contentPadding: EdgeInsets.zero,
      child: ExpansionTile(
        backgroundColor: widget.backgroundColor ?? MyColors.white,
        onExpansionChanged: widget.onExpansionChanged,
        initiallyExpanded: widget.initialExpanded ?? false,
        iconColor: MyColors.black5,
        tilePadding: EdgeInsets.only(left: 16.0, right: 12.0),
        childrenPadding:
            EdgeInsets.only(left: 16.0, bottom: 16.0, right: 12.0),
        title: Text(
          widget.title,
          style: widget.textStyle ??
              MyThemeData.textTheme.caption
                  ?.copyWith(color: MyColors.black5, height: 1),
        ),
        children: widget.child,
      ),
    ),
  );
  </code></pre>
  <p>i've try remove default padding use ListTileTheme. work for horizontal padding but not Vertical padding</p>
  <p>so, how to remove vertical padding ?</p>