made SliverScreen title a widget

lib/screens/films/screen_films.dart

@@ -1,15 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:lightmeter/generated/l10n.dart';
-import 'package:lightmeter/screens/settings/components/about/widget_settings_section_about.dart';
+import 'package:lightmeter/providers/films_provider.dart';
-import 'package:lightmeter/screens/settings/components/general/widget_settings_section_general.dart';
+import 'package:lightmeter/screens/films/components/film_formula_input/widget_film_formula_input.dart';
-import 'package:lightmeter/screens/settings/components/lightmeter_pro/widget_settings_section_lightmeter_pro.dart';
-import 'package:lightmeter/screens/settings/components/metering/widget_settings_section_metering.dart';
-import 'package:lightmeter/screens/settings/components/shared/expandable_section_list/components/expandable_section_list_item/widget_expandable_section_list_item.dart';
 import 'package:lightmeter/screens/settings/components/shared/expandable_section_list/widget_expandable_section_list.dart';
-import 'package:lightmeter/screens/settings/components/theme/widget_settings_section_theme.dart';
-import 'package:lightmeter/screens/settings/flow_settings.dart';
 import 'package:lightmeter/screens/shared/sliver_screen/screen_sliver.dart';
-import 'package:lightmeter/utils/context_utils.dart';
 import 'package:m3_lightmeter_iap/m3_lightmeter_iap.dart';
 import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
 
@@ -24,31 +18,29 @@ class _FilmsScreenState extends State<FilmsScreen> {
   @override
   Widget build(BuildContext context) {
     return SliverScreen(
-      title: 'Films',
+      title: Text('Films'),
       appBarActions: [
         IconButton(
-          onPressed: () {},
+          onPressed: _addFilm,
           icon: const Icon(Icons.add_outlined),
           tooltip: S.of(context).tooltipAdd,
         ),
       ],
       slivers: [
-        ExpandableSectionList<Film>(
+        ExpandableSectionList<FilmExponential>(
-          values: films,
+          values: [],
           onSectionTitleTap: () {},
           contentBuilder: (context, value) => [
             ListTile(
               leading: const Icon(Icons.iso),
               title: Text(S.of(context).iso),
               trailing: Text(value.iso.toString()),
-              onTap: () {
+              onTap: () {},
-                
-              },
             ),
             ListTile(
               leading: const Icon(Icons.equalizer),
               title: Text('Formula'),
-              trailing: Text('x^1.34'),
+              trailing: Text(value.exponent.toString()),
             ),
           ],
           actionsBuilder: (context, value) => [
@@ -68,4 +60,15 @@ class _FilmsScreenState extends State<FilmsScreen> {
       ],
     );
   }
+
+  void _addFilm([EquipmentProfile? copyFrom]) {
+    showDialog<String>(
+      context: context,
+      builder: (_) => const FilmFormulaDialog(),
+    ).then((name) {
+      if (name != null) {
+        FilmsProvider.of(context).addFilm(name);
+      }
+    });
+  }
 }

lib/screens/lightmeter_pro/screen_lightmeter_pro.dart

@@ -21,7 +21,7 @@ class LightmeterProScreen extends StatelessWidget {
       children: [
         Expanded(
           child: SliverScreen(
-            title: S.of(context).proFeaturesTitle,
+            title: Text(S.of(context).proFeaturesTitle),
             slivers: [
               SliverToBoxAdapter(
                 child: Padding(

lib/screens/settings/components/metering/components/equipment_profiles/components/equipment_profile_screen/screen_equipment_profile.dart

@@ -28,7 +28,7 @@ class _EquipmentProfilesScreenState extends State<EquipmentProfilesScreen> {
   @override
   Widget build(BuildContext context) {
     return SliverScreen(
-      title: S.of(context).equipmentProfiles,
+      title: Text(S.of(context).equipmentProfiles),
       appBarActions: [
         IconButton(
           onPressed: _addProfile,

lib/screens/settings/screen_settings.dart

@@ -33,7 +33,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
   Widget build(BuildContext context) {
     return ScaffoldMessenger(
       child: SliverScreen(
-        title: S.of(context).settings,
+        title: Text(S.of(context).settings),
         slivers: [
           SliverList(
             delegate: SliverChildListDelegate(

lib/screens/shared/sliver_screen/screen_sliver.dart

@@ -3,7 +3,7 @@ import 'package:lightmeter/generated/l10n.dart';
 import 'package:lightmeter/res/dimens.dart';
 
 class SliverScreen extends StatelessWidget {
-  final String title;
+  final Widget title;
   final List<Widget> appBarActions;
   final List<Widget> slivers;
 
@@ -29,12 +29,12 @@ class SliverScreen extends StatelessWidget {
               flexibleSpace: FlexibleSpaceBar(
                 centerTitle: false,
                 titlePadding: const EdgeInsets.all(Dimens.paddingM),
-                title: Text(
+                title: DefaultTextStyle(
-                  title,
                   style: TextStyle(
                     color: Theme.of(context).colorScheme.onSurface,
                     fontSize: Dimens.grid24,
                   ),
+                  child: title,
                 ),
               ),
               actions: [