Update QuillEditor constructor

app/lib/pages/home_page.dart

@@ -1,7 +1,6 @@
 import 'dart:convert';
 import 'dart:io';
 
-
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_quill/models/documents/document.dart';
@@ -10,7 +9,6 @@ import 'package:flutter_quill/widgets/controller.dart';
 import 'package:flutter_quill/widgets/default_styles.dart';
 import 'package:flutter_quill/widgets/editor.dart';
 
-
 class HomePage extends StatefulWidget {
   @override
   _HomePageState createState() => _HomePageState();
@@ -34,12 +32,14 @@ class _HomePageState extends State<HomePage> {
       final result = await rootBundle.loadString('assets/welcome.note');
       final doc = Document.fromJson(jsonDecode(result));
       setState(() {
-        _controller = QuillController(document: doc, selection: TextSelection.collapsed(offset: 0));
+        _controller = QuillController(
+            document: doc, selection: TextSelection.collapsed(offset: 0));
       });
     } catch (error) {
       final doc = Document()..insert(0, 'Empty asset');
       setState(() {
-        _controller = QuillController(document: doc, selection: TextSelection.collapsed(offset: 0));
+        _controller = QuillController(
+            document: doc, selection: TextSelection.collapsed(offset: 0));
       });
     }
   }
@@ -58,8 +58,7 @@ class _HomePageState extends State<HomePage> {
         title: Text(
           'Flutter Quill',
         ),
-          actions: [
-          ],
+        actions: [],
       ),
       body: _buildWelcomeEditor(context),
     );
@@ -83,6 +82,7 @@ class _HomePageState extends State<HomePage> {
               embedBuilder: _embedBuilder,
               enableInteractiveSelection: true,
               expands: false,
+              padding: EdgeInsets.zero,
             ),
           ),
         ),
@@ -104,5 +104,4 @@ class _HomePageState extends State<HomePage> {
         'builder of QuillEditor. You must pass your own builder function to '
         'embedBuilder property of QuillEditor or QuillField widgets.');
   }
-
 }

lib/widgets/editor.dart

@@ -98,7 +98,7 @@ class QuillEditor extends StatefulWidget {
       this.focusNode,
       @required this.scrollController,
       @required this.scrollable,
-      this.padding,
+      @required this.padding,
       @required this.autoFocus,
       this.showCursor,
       @required this.readOnly,
@@ -106,8 +106,8 @@ class QuillEditor extends StatefulWidget {
       this.minHeight,
       this.maxHeight,
       @required this.expands,
-      this.textCapitalization,
-      this.keyboardAppearance,
+      this.textCapitalization = TextCapitalization.sentences,
+      this.keyboardAppearance = Brightness.light,
       this.scrollPhysics,
       this.onLaunchUrl,
       @required this.embedBuilder})
@@ -437,6 +437,7 @@ class RawEditor extends StatefulWidget {
         showCursor = showCursor ?? !readOnly,
         assert(embedBuilder != null, 'embedBuilder cannot be null'),
         assert(expands != null, 'expands cannot be null'),
+        assert(padding != null),
         super(key: key);
 
   @override