Change some hard coded theme elements to dynamic. Added dark theme code.

lib/main.dart

@@ -61,12 +61,40 @@ class _InvoiceNinjaAppState extends State<InvoiceNinjaApp> {
           const AppLocalizationsDelegate(),
           GlobalMaterialLocalizations.delegate,
         ],
+        // light theme
+        
+        theme: ThemeData().copyWith(
+          accentColor: Colors.lightBlueAccent,
+          primaryColor: const Color(0xFF117cc1),
+          primaryColorLight: const Color(0xFF5dabf4),
+          primaryColorDark: const Color(0xFF0D5D91),
+          indicatorColor: const Color(0xFFFFFFFF),
+          iconTheme: IconThemeData().copyWith(),
+          bottomAppBarColor: const Color(0xFF117cc1),
+        ),
+        
+        
+        //dark theme
+        /*
+        theme: ThemeData.dark().copyWith(
+          accentColor: Colors.lightBlueAccent,
+          primaryColor: const Color(0xFF117cc1),
+          primaryColorLight: const Color(0xFF5dabf4),
+          primaryColorDark: const Color(0xFF0D5D91),
+          indicatorColor: const Color(0xFFFFFFFF),
+          iconTheme: IconThemeData().copyWith(color: Colors.white),
+          bottomAppBarColor: const Color(0xFF117cc1),
+        ),
+        */
+        
+        /*
         theme: ThemeData().copyWith(
           primaryColor: const Color(0xFF117cc1),
           primaryColorLight: const Color(0xFF5dabf4),
           primaryColorDark: const Color(0xFF0D5D91),
           indicatorColor: const Color(0xFFFFFFFF),
         ),
+        */
         /*
         theme: ThemeData(
           brightness: Brightness.dark,

lib/ui/app/actions_menu_button.dart

@@ -30,7 +30,7 @@ class ActionMenuButton extends StatelessWidget {
             value: EntityAction.restore,
             child: Row(
               children: <Widget>[
-                Icon(Icons.restore, color:  Colors.grey[600]),
+                Icon(Icons.restore,),
                 SizedBox(width: 15.0),
                 Text(AppLocalization.of(context).restore),
               ],
@@ -40,7 +40,7 @@ class ActionMenuButton extends StatelessWidget {
             value: EntityAction.archive,
             child: Row(
               children: <Widget>[
-                Icon(Icons.archive, color: Colors.grey[600]),
+                Icon(Icons.archive,),
                 SizedBox(width: 15.0),
                 Text(AppLocalization.of(context).archive),
               ],
@@ -50,7 +50,7 @@ class ActionMenuButton extends StatelessWidget {
             value: EntityAction.delete,
             child: Row(
               children: <Widget>[
-                Icon(Icons.delete, color: Colors.grey[600]),
+                Icon(Icons.delete,),
                 SizedBox(width: 15.0),
                 Text(AppLocalization.of(context).delete),
               ],

lib/ui/app/app_bottom_bar.dart

@@ -46,7 +46,7 @@ class _AppBottomBarState extends State<AppBottomBar> {
           converter: (Store<AppState> store) => store.state.getListState(widget.entityType).stateFilters,
           builder: (BuildContext context, stateFilters) {
             return Container(
-              color: Colors.grey[200],
+              color: Theme.of(context).backgroundColor, //Colors.grey[200],
               child: new Column(mainAxisSize: MainAxisSize.min, children: <Widget>[
                 Column(
                   children: EntityState.values.map<Widget>((state) {
@@ -101,7 +101,7 @@ class _AppBottomBarState extends State<AppBottomBar> {
           converter: (Store<AppState> store) => store.state.getListState(widget.entityType),
           builder: (BuildContext context, listUIState) {
             return Container(
-              color: Colors.grey[200],
+              color: Theme.of(context).backgroundColor,
               child: Column(
                   mainAxisSize: MainAxisSize.min,
                   children: widget.sortFields.map((sortField) {
@@ -131,6 +131,7 @@ class _AppBottomBarState extends State<AppBottomBar> {
     };
 
     return new BottomAppBar(
+      color: Theme.of(context).bottomAppBarColor,
       hasNotch: true,
       child: Row(
         children: <Widget>[
@@ -138,11 +139,13 @@ class _AppBottomBarState extends State<AppBottomBar> {
             tooltip: AppLocalization.of(context).sort,
             icon: Icon(Icons.sort_by_alpha),
             onPressed: _showSortSheet,
+            color: Colors.white,
           ),
           IconButton(
             tooltip: AppLocalization.of(context).filter,
             icon: Icon(Icons.filter_list),
             onPressed: _showFilterSheet,
+            color: Colors.white,
           ),
         ],
       ),

lib/ui/client/client_screen.dart

@@ -63,7 +63,7 @@ class ClientScreen extends StatelessWidget {
               .of(context)
               .push(MaterialPageRoute(builder: (_) => ClientEditScreen()));
         },
-        child: Icon(Icons.add),
+        child: Icon(Icons.add, color: Colors.white,),
         tooltip: localization.newClient,
       ),
     );

lib/ui/client/edit/client_edit_contacts.dart

@@ -83,7 +83,6 @@ class ClientEditContactsState extends State<ClientEditContacts>
       child: RaisedButton(
         elevation: 4.0,
         color: Theme.of(context).primaryColor,
-        textColor: Theme.of(context).secondaryHeaderColor,
         child: Text(localization.addContact.toUpperCase()),
         onPressed: _onAddPressed,
       ),

lib/ui/client/view/client_view.dart

@@ -98,7 +98,7 @@ class _ClientViewState extends State<ClientView>
                     ]),
           );
         },
-        child: Icon(Icons.add),
+        child: Icon(Icons.add, color: Colors.white,),
         tooltip: localization.create,
       ),
     );

lib/ui/client/view/client_view_overview.dart

@@ -110,7 +110,6 @@ class ClientOverview extends StatelessWidget {
           height: 1.0,
         ),
         Container(
-          color: Colors.white,
           child: Material(
             type: MaterialType.transparency,
             child: ListTile(
@@ -125,7 +124,6 @@ class ClientOverview extends StatelessWidget {
           height: 1.0,
         ),
         Container(
-          color: Colors.white,
           child: Material(
             type: MaterialType.transparency,
             child: ListTile(

lib/ui/dashboard/dashboard_panels.dart

@@ -97,7 +97,7 @@ class DashboardRow extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: <Widget>[
                 Text(this.title,
-                  style: TextStyle(color: Colors.grey[700])),
+                  style: TextStyle()),
                 Text(this.isMoney
                     ? "\$" + this.amount.toStringAsFixed(2)
                     : this.amount.toString(),
@@ -140,7 +140,7 @@ class DashboardColumn extends StatelessWidget {
                 Center(child: ColorIcon(this.icon, this.color)),
                 SizedBox(height: 18.0),
                 Text(this.title,
-                    style: TextStyle(color: Colors.grey[700])),
+                    style: TextStyle()),
                 Text(this.isMoney
                     ? "\$" + this.amount.toStringAsFixed(2)
                     : this.amount.toString(),

lib/ui/invoice/invoice_screen.dart

@@ -60,7 +60,7 @@ class InvoiceScreen extends StatelessWidget {
               .of(context)
               .push(MaterialPageRoute(builder: (_) => InvoiceEditScreen()));
         },
-        child: Icon(Icons.add),
+        child: Icon(Icons.add,color: Colors.white,),
         tooltip: localization.newInvoice,
       ),
     );

lib/ui/product/product_screen.dart

@@ -60,7 +60,7 @@ class ProductScreen extends StatelessWidget {
               .of(context)
               .push(MaterialPageRoute(builder: (_) => ProductEditScreen()));
         },
-        child: Icon(Icons.add),
+        child: Icon(Icons.add,color: Colors.white,),
         tooltip: localization.newProduct,
       ),
     );