Accent color

lib/ui/app/forms/app_tab_bar.dart

@@ -0,0 +1,42 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_redux/flutter_redux.dart';
+import 'package:invoiceninja_flutter/redux/app/app_state.dart';
+
+class AppTabBar extends StatelessWidget {
+  const AppTabBar({
+    this.isScrollable,
+    this.tabs,
+    this.controller,
+  });
+
+  final List<Widget> tabs;
+  final TabController controller;
+  final bool isScrollable;
+
+  @override
+  Widget build(BuildContext context) {
+    final store = StoreProvider.of<AppState>(context);
+    final state = store.state;
+
+    final tabBar = TabBar(
+      tabs: tabs,
+      controller: controller,
+      isScrollable: isScrollable,
+      indicatorColor: Theme.of(context).accentColor,
+    );
+
+    if (state.prefState.enableDarkMode || !state.hasAccentColor) {
+      return tabBar;
+    }
+
+    return Theme(
+      data: ThemeData(
+        tabBarTheme: TabBarTheme(
+          labelColor: Colors.black,
+          unselectedLabelColor: Colors.black.withOpacity(.65),
+        ),
+      ),
+      child: tabBar,
+    );
+  }
+}