diff --git a/lib/helpers/app_icon_helper.dart b/lib/helpers/app_icon_helper.dart
index ee3f4d3..275b3ea 100644
--- a/lib/helpers/app_icon_helper.dart
+++ b/lib/helpers/app_icon_helper.dart
@@ -28,6 +28,7 @@ class AppIconHelper {
       }
     } else if (Platform.isAndroid) {
       // change icon on android
+      // ignore: no_leading_underscores_for_local_identifiers
       final _androidDynamicIconPlugin = AndroidDynamicIcon();
       await _androidDynamicIconPlugin.changeIcon(
         bundleId: 'hu.refilc.naplo',
diff --git a/lib/ui/mobile/goal_planner/goal_complete_modal.dart b/lib/ui/mobile/goal_planner/goal_complete_modal.dart
index 0ac6bd2..dfa068c 100644
--- a/lib/ui/mobile/goal_planner/goal_complete_modal.dart
+++ b/lib/ui/mobile/goal_planner/goal_complete_modal.dart
@@ -10,13 +10,13 @@ import 'package:provider/provider.dart';
 class GoalCompleteModal extends StatelessWidget {
   const GoalCompleteModal(
     this.subject, {
-    Key? key,
+    super.key,
     required this.user,
     required this.database,
     required this.goalAverage,
     required this.beforeAverage,
     required this.averageDifference,
-  }) : super(key: key);
+  });
 
   final UserProvider user;
   final DatabaseProvider database;
@@ -120,7 +120,7 @@ class GoalCompleteModal extends StatelessWidget {
                 ),
                 Text(
                   'improved_by'.i18n.fill([
-                    averageDifference.toStringAsFixed(2) + '%',
+                    '${averageDifference.toStringAsFixed(2)}%',
                   ]),
                   textAlign: TextAlign.center,
                   style: TextStyle(
@@ -237,6 +237,7 @@ class GoalCompleteModal extends StatelessWidget {
     double avgDifference = ((goalAvg - beforeAvg) / beforeAvg.abs()) * 100;
 
     return showDialog<T?>(
+      // ignore: use_build_context_synchronously
       context: context,
       builder: (context) => GoalCompleteModal(
         subject,
diff --git a/lib/ui/mobile/goal_planner/goal_input.dart b/lib/ui/mobile/goal_planner/goal_input.dart
index f440a4e..0d07437 100644
--- a/lib/ui/mobile/goal_planner/goal_input.dart
+++ b/lib/ui/mobile/goal_planner/goal_input.dart
@@ -5,11 +5,10 @@ import 'package:provider/provider.dart';
 
 class GoalInput extends StatelessWidget {
   const GoalInput(
-      {Key? key,
+      {super.key,
       required this.currentAverage,
       required this.value,
-      required this.onChanged})
-      : super(key: key);
+      required this.onChanged});
 
   final double currentAverage;
   final double value;
diff --git a/lib/ui/mobile/goal_planner/goal_planner_screen.dart b/lib/ui/mobile/goal_planner/goal_planner_screen.dart
index 4554d0e..1c463ef 100644
--- a/lib/ui/mobile/goal_planner/goal_planner_screen.dart
+++ b/lib/ui/mobile/goal_planner/goal_planner_screen.dart
@@ -419,6 +419,7 @@ class _GoalPlannerScreenState extends State<GoalPlannerScreen> {
                               goalPinDates,
                               userId: user.id!);
 
+                          // ignore: use_build_context_synchronously
                           Navigator.of(context).pop();
                         },
                         fillColor: Theme.of(context).colorScheme.primary,
diff --git a/lib/ui/mobile/goal_planner/goal_state_screen.dart b/lib/ui/mobile/goal_planner/goal_state_screen.dart
index ea47b27..728a04c 100644
--- a/lib/ui/mobile/goal_planner/goal_state_screen.dart
+++ b/lib/ui/mobile/goal_planner/goal_state_screen.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: use_build_context_synchronously
+
 import 'package:refilc/api/providers/database_provider.dart';
 import 'package:refilc/api/providers/user_provider.dart';
 import 'package:refilc/helpers/average_helper.dart';
@@ -26,7 +28,7 @@ import 'graph.dart';
 class GoalStateScreen extends StatefulWidget {
   final GradeSubject subject;
 
-  const GoalStateScreen({Key? key, required this.subject}) : super(key: key);
+  const GoalStateScreen({super.key, required this.subject});
 
   @override
   State<GoalStateScreen> createState() => _GoalStateScreenState();
@@ -394,8 +396,7 @@ class _GoalStateScreenState extends State<GoalStateScreen> {
                                         ),
                                         const SizedBox(width: 5.0),
                                         Text(
-                                          avgDifference.toStringAsFixed(2) +
-                                              '%',
+                                          '${avgDifference.toStringAsFixed(2)}%',
                                           textAlign: TextAlign.center,
                                           style: TextStyle(
                                             color: avgDifference.isNegative
diff --git a/lib/ui/mobile/goal_planner/grade_display.dart b/lib/ui/mobile/goal_planner/grade_display.dart
index d35871d..31e3d65 100644
--- a/lib/ui/mobile/goal_planner/grade_display.dart
+++ b/lib/ui/mobile/goal_planner/grade_display.dart
@@ -4,7 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 class GradeDisplay extends StatelessWidget {
-  const GradeDisplay({Key? key, required this.grade}) : super(key: key);
+  const GradeDisplay({super.key, required this.grade});
 
   final int grade;
 
diff --git a/lib/ui/mobile/goal_planner/graph.dart b/lib/ui/mobile/goal_planner/graph.dart
index ddd1cf7..13bb31f 100644
--- a/lib/ui/mobile/goal_planner/graph.dart
+++ b/lib/ui/mobile/goal_planner/graph.dart
@@ -10,18 +10,17 @@ import 'package:fl_chart/fl_chart.dart';
 import 'package:provider/provider.dart';
 
 class GoalGraph extends StatefulWidget {
-  const GoalGraph(this.data, {Key? key, this.dayThreshold = 7, this.classAvg})
-      : super(key: key);
+  const GoalGraph(this.data, {super.key, this.dayThreshold = 7, this.classAvg});
 
   final List<Grade> data;
   final int dayThreshold;
   final double? classAvg;
 
   @override
-  _GoalGraphState createState() => _GoalGraphState();
+  GoalGraphState createState() => GoalGraphState();
 }
 
-class _GoalGraphState extends State<GoalGraph> {
+class GoalGraphState extends State<GoalGraph> {
   late SettingsProvider settings;
 
   List<FlSpot> getSpots(List<Grade> data) {
@@ -135,6 +134,7 @@ class _GoalGraphState extends State<GoalGraph> {
           )
         : ClipRect(
             child: SizedBox(
+              height: 158,
               child: subjectSpots.length > 1
                   ? Padding(
                       padding: const EdgeInsets.only(top: 8.0, right: 8.0),
@@ -242,7 +242,6 @@ class _GoalGraphState extends State<GoalGraph> {
                       ),
                     )
                   : null,
-              height: 158,
             ),
           );
   }
diff --git a/lib/ui/mobile/goal_planner/route_option.dart b/lib/ui/mobile/goal_planner/route_option.dart
index 394d1d9..61e2357 100644
--- a/lib/ui/mobile/goal_planner/route_option.dart
+++ b/lib/ui/mobile/goal_planner/route_option.dart
@@ -8,12 +8,11 @@ enum RouteMark { recommended, fastest }
 
 class RouteOption extends StatelessWidget {
   const RouteOption(
-      {Key? key,
+      {super.key,
       required this.plan,
       this.mark,
       this.selected = false,
-      required this.onSelected})
-      : super(key: key);
+      required this.onSelected});
 
   final Plan plan;
   final RouteMark? mark;
@@ -144,10 +143,10 @@ class RouteOption extends StatelessWidget {
 
 class RouteOptionRow extends StatelessWidget {
   const RouteOptionRow({
-    Key? key,
+    super.key,
     required this.plan,
     this.mark,
-  }) : super(key: key);
+  });
 
   final Plan plan;
   final RouteMark? mark;
diff --git a/lib/ui/mobile/premium/premium_inline.dart b/lib/ui/mobile/premium/premium_inline.dart
index 7c96a9c..cb54955 100644
--- a/lib/ui/mobile/premium/premium_inline.dart
+++ b/lib/ui/mobile/premium/premium_inline.dart
@@ -1,3 +1,5 @@
+// ignore_for_file: unused_element
+
 import 'package:refilc_plus/ui/mobile/premium/upsell.dart';
 import 'package:flutter/material.dart';
 
diff --git a/lib/ui/mobile/settings/app_icon_screen.dart b/lib/ui/mobile/settings/app_icon_screen.dart
index 22ebb75..b85c7c3 100644
--- a/lib/ui/mobile/settings/app_icon_screen.dart
+++ b/lib/ui/mobile/settings/app_icon_screen.dart
@@ -12,8 +12,7 @@ import 'package:provider/provider.dart';
 import 'app_icon_screen.i18n.dart';
 
 class PremiumCustomAppIconMenu extends StatelessWidget {
-  const PremiumCustomAppIconMenu({Key? key, required this.settings})
-      : super(key: key);
+  const PremiumCustomAppIconMenu({super.key, required this.settings});
 
   final SettingsProvider settings;
 
@@ -43,7 +42,7 @@ class PremiumCustomAppIconMenu extends StatelessWidget {
 }
 
 class ModifyAppIcon extends StatefulWidget {
-  const ModifyAppIcon({Key? key}) : super(key: key);
+  const ModifyAppIcon({super.key});
 
   @override
   State<ModifyAppIcon> createState() => _ModifyAppIconState();
@@ -167,14 +166,14 @@ class _ModifyAppIconState extends State<ModifyAppIcon> {
 
 class AppIconItem extends StatelessWidget {
   const AppIconItem({
-    Key? key,
+    super.key,
     required this.iconName,
     required this.iconPath,
     required this.displayName,
     this.description,
     required this.selected,
     required this.selectCallback,
-  }) : super(key: key);
+  });
 
   final String iconName;
   final String iconPath;
diff --git a/lib/ui/mobile/settings/settings_helper.dart b/lib/ui/mobile/settings/settings_helper.dart
index 51cb01d..efad545 100644
--- a/lib/ui/mobile/settings/settings_helper.dart
+++ b/lib/ui/mobile/settings/settings_helper.dart
@@ -1,4 +1,3 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_feather_icons/flutter_feather_icons.dart';
 import 'package:provider/provider.dart';
@@ -23,10 +22,10 @@ class GradeRarityTextSetting extends StatefulWidget {
   final List<String> defaultRarities;
 
   @override
-  _GradeRarityTextSettingState createState() => _GradeRarityTextSettingState();
+  GradeRarityTextSettingState createState() => GradeRarityTextSettingState();
 }
 
-class _GradeRarityTextSettingState extends State<GradeRarityTextSetting> {
+class GradeRarityTextSettingState extends State<GradeRarityTextSetting> {
   late SettingsProvider settings;
   late DatabaseProvider db;
   late UserProvider user;
diff --git a/lib/ui/mobile/settings/share_theme.dart b/lib/ui/mobile/settings/share_theme.dart
index 987ad7b..de16e26 100644
--- a/lib/ui/mobile/settings/share_theme.dart
+++ b/lib/ui/mobile/settings/share_theme.dart
@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 class PremiumShareTheme extends StatefulWidget {
-  const PremiumShareTheme({Key? key}) : super(key: key);
+  const PremiumShareTheme({super.key});
 
   @override
   State<PremiumShareTheme> createState() => _PremiumShareThemeState();
diff --git a/pubspec.yaml b/pubspec.yaml
index b69c610..b74eb0d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -35,6 +35,8 @@ dependencies:
   flutter_dynamic_icon: ^2.1.0
   android_dynamic_icon: ^1.0.1
   i18n_extension: ^11.0.12
+  http: ^1.2.0
+  fl_chart: ^0.45.1
 
 dev_dependencies:
   flutter_lints: ^3.0.1