added features dialog subtitles

lib/l10n/intl_en.arb

@@ -42,7 +42,9 @@
     "meteringScreenFeatureHistogram": "Histogram",
     "cameraFeatures": "Camera features",
     "cameraFeatureSpotMetering": "Spot metering",
+    "cameraFeatureSpotMeteringHint": "Long press the camera view to remove metering spot",
     "cameraFeatureHistogram": "Histogram",
+    "cameraFeatureHistogramHint": "Enabling histogram can encrease battery drain",
     "film": "Film",
     "filmPush": "Film (push)",
     "filmPull": "Film (pull)",

lib/res/theme.dart

@@ -23,7 +23,7 @@ const primaryColorsList = [
 
 ThemeData themeFrom(Color primaryColor, Brightness brightness) {
   final scheme = _colorSchemeFromColor(primaryColor, brightness);
-  return ThemeData(
+  final theme = ThemeData(
     useMaterial3: true,
     brightness: scheme.brightness,
     primaryColor: primaryColor,
@@ -60,12 +60,18 @@ ThemeData themeFrom(Color primaryColor, Brightness brightness) {
     ),
     scaffoldBackgroundColor: scheme.surface,
   );
+  return theme.copyWith(
+    listTileTheme: ListTileThemeData(
+      style: ListTileStyle.list,
+      iconColor: scheme.onSurface,
+      textColor: scheme.onSurface,
+      subtitleTextStyle: theme.textTheme.bodyMedium!.copyWith(color: scheme.onSurfaceVariant),
+    ),
+  );
 }
 
 ColorScheme _colorSchemeFromColor(Color primaryColor, Brightness brightness) {
-  final scheme = brightness == Brightness.light
-      ? Scheme.light(primaryColor.value)
-      : Scheme.dark(primaryColor.value);
+  final scheme = brightness == Brightness.light ? Scheme.light(primaryColor.value) : Scheme.dark(primaryColor.value);
 
   return ColorScheme(
     brightness: brightness,

lib/screens/settings/components/metering/components/camera_features/widget_list_tile_camera_features.dart

@@ -19,20 +19,26 @@ class CameraFeaturesListTile extends StatelessWidget {
             icon: Icons.layers_outlined,
             title: S.of(context).cameraFeatures,
             values: UserPreferencesProvider.cameraConfigOf(context),
-            titleAdapter: _toStringLocalized,
-            onSave: UserPreferencesProvider.of(context).setCameraFeature,
-          ),
-        );
-      },
-    );
-  }
-
-  String _toStringLocalized(BuildContext context, CameraFeature feature) {
+            titleAdapter: (context, feature) {
               switch (feature) {
                 case CameraFeature.spotMetering:
                   return S.of(context).cameraFeatureSpotMetering;
                 case CameraFeature.histogram:
                   return S.of(context).cameraFeatureHistogram;
               }
+            },
+            subtitleAdapter: (context, feature) {
+              switch (feature) {
+                case CameraFeature.spotMetering:
+                  return S.of(context).cameraFeatureSpotMeteringHint;
+                case CameraFeature.histogram:
+                  return S.of(context).cameraFeatureHistogramHint;
+              }
+            },
+            onSave: UserPreferencesProvider.of(context).setCameraFeature,
+          ),
+        );
+      },
+    );
   }
 }

lib/screens/settings/components/shared/dialog_switch/widget_dialog_switch.dart

@@ -2,12 +2,15 @@ import 'package:flutter/material.dart';
 import 'package:lightmeter/generated/l10n.dart';
 import 'package:lightmeter/res/dimens.dart';
 
+typedef StringAdapter<T> = String Function(BuildContext context, T value);
+
 class DialogSwitch<T> extends StatefulWidget {
   final IconData icon;
   final String title;
   final String? description;
   final Map<T, bool> values;
-  final String Function(BuildContext context, T value) titleAdapter;
+  final StringAdapter<T> titleAdapter;
+  final StringAdapter<T>? subtitleAdapter;
   final ValueChanged<Map<T, bool>> onSave;
 
   const DialogSwitch({
@@ -16,6 +19,7 @@ class DialogSwitch<T> extends StatefulWidget {
     this.description,
     required this.values,
     required this.titleAdapter,
+    this.subtitleAdapter,
     required this.onSave,
     super.key,
   });
@@ -53,6 +57,12 @@ class _DialogSwitchState<T> extends State<DialogSwitch<T>> {
                     (entry) => SwitchListTile(
                       contentPadding: EdgeInsets.symmetric(horizontal: Dimens.dialogTitlePadding.left),
                       title: Text(widget.titleAdapter(context, entry.key)),
+                      subtitle: widget.subtitleAdapter != null
+                          ? Text(
+                              widget.subtitleAdapter!.call(context, entry.key),
+                              style: Theme.of(context).listTileTheme.subtitleTextStyle,
+                            )
+                          : null,
                       value: _features[entry.key]!,
                       onChanged: (value) {
                         setState(() {