Fix FAB colors

lib/views/chat.dart

@@ -381,6 +381,7 @@ class _ChatState extends State<_Chat> {
                 child: Icon(Icons.arrow_downward,
                     color: Theme.of(context).primaryColor),
                 onPressed: () => _scrollController.jumpTo(0),
+                foregroundColor: Theme.of(context).textTheme.bodyText1.color,
                 backgroundColor: Theme.of(context).scaffoldBackgroundColor,
                 mini: true,
               ),

lib/views/chat_list.dart

@@ -193,10 +193,12 @@ class _ChatListState extends State<ChatList> {
       floatingActionButton: SpeedDial(
         child: Icon(Icons.add),
         overlayColor: blackWhiteColor(context),
+        foregroundColor: Colors.white,
         backgroundColor: Theme.of(context).primaryColor,
         children: [
           SpeedDialChild(
             child: Icon(Icons.people_outline),
+            foregroundColor: Colors.white,
             backgroundColor: Colors.blue,
             label: I18n.of(context).createNewGroup,
             labelStyle:
@@ -207,6 +209,7 @@ class _ChatListState extends State<ChatList> {
           ),
           SpeedDialChild(
             child: Icon(Icons.person_add),
+            foregroundColor: Colors.white,
             backgroundColor: Colors.green,
             label: I18n.of(context).newPrivateChat,
             labelStyle: TextStyle(

lib/views/new_group.dart

@@ -101,6 +101,7 @@ class _NewGroupState extends State<_NewGroup> {
         ],
       ),
       floatingActionButton: FloatingActionButton(
+        foregroundColor: Colors.white,
         backgroundColor: Theme.of(context).primaryColor,
         onPressed: () => submitAction(context),
         child: Icon(Icons.arrow_forward),

lib/views/new_private_chat.dart

@@ -236,6 +236,7 @@ class _NewPrivateChatState extends State<_NewPrivateChat> {
       floatingActionButton: FloatingActionButton(
         onPressed: () => submitAction(context),
         child: Icon(Icons.arrow_forward),
+        foregroundColor: Colors.white,
         backgroundColor: Theme.of(context).primaryColor,
       ),
     );