update

lib/pages/rates/custom_row.dart

@@ -4,14 +4,13 @@ import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/widgets/local_text.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_icons/flutter_icons.dart';
 
 typedef SelectionCallback(CustomDuty custom);
 
 class CustomRow extends StatelessWidget {
   final CustomDuty custom;
-  final SelectionCallback selectionCallback;
-  const CustomRow({Key key, this.custom, this.selectionCallback})
+  final SelectionCallback? selectionCallback;
+  const CustomRow({Key? key, required this.custom, this.selectionCallback})
       : super(key: key);
 
   @override
@@ -19,7 +18,7 @@ class CustomRow extends StatelessWidget {
     return InkWell(
       onTap: selectionCallback == null
           ? null
-          : () => this.selectionCallback(custom),
+          : () => this.selectionCallback!(custom),
       child: Row(
         children: <Widget>[
           Expanded(
@@ -40,8 +39,8 @@ class CustomRow extends StatelessWidget {
     );
   }
 
-  Widget line(BuildContext context, String text,
-      {IconData iconData, Color color, double fontSize}) {
+  Widget line(BuildContext context, String? text,
+      {IconData? iconData, Color? color, double? fontSize}) {
     return Row(
       children: [
         iconData == null
@@ -55,7 +54,7 @@ class CustomRow extends StatelessWidget {
             context,
             text ?? "",
             fontSize: fontSize ?? 14,
-            color: color,
+            color: color ?? Colors.grey,
           ),
         ),
       ],