diff --git a/.gitignore b/.gitignore
index 0e8c2f9..29a3a50 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 # Miscellaneous
 *.class
-*.lock
 *.log
 *.pyc
 *.swp
@@ -9,6 +8,7 @@
 .buildlog/
 .history
 .svn/
+migrate_working_dir/
 
 # IntelliJ related
 *.iml
@@ -16,102 +16,28 @@
 *.iws
 .idea/
 
-# Visual Studio Code related
-.classpath
-.project
-.settings/
-.vscode/
-
-# Flutter repo-specific
-/bin/cache/
-/bin/internal/bootstrap.bat
-/bin/internal/bootstrap.sh
-/bin/mingit/
-/dev/benchmarks/mega_gallery/
-/dev/bots/.recipe_deps
-/dev/bots/android_tools/
-/dev/devicelab/ABresults*.json
-/dev/docs/doc/
-/dev/docs/flutter.docs.zip
-/dev/docs/lib/
-/dev/docs/pubspec.yaml
-/dev/integration_tests/**/xcuserdata
-/dev/integration_tests/**/Pods
-/packages/flutter/coverage/
-version
-analysis_benchmark.json
-
-# packages file containing multi-root paths
-.packages.generated
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
 
 # Flutter/Dart/Pub related
 **/doc/api/
+**/ios/Flutter/.last_build_id
 .dart_tool/
 .flutter-plugins
 .flutter-plugins-dependencies
-**/generated_plugin_registrant.dart
-.packages
 .pub-cache/
 .pub/
-build/
-flutter_*.png
-linked_*.ds
-unlinked.ds
-unlinked_spec.ds
+/build/
 
-# Android related
-**/android/**/gradle-wrapper.jar
-**/android/.gradle
-**/android/captures/
-**/android/gradlew
-**/android/gradlew.bat
-**/android/local.properties
-**/android/**/GeneratedPluginRegistrant.java
-**/android/key.properties
-*.jks
-
-# iOS/XCode related
-**/ios/**/*.mode1v3
-**/ios/**/*.mode2v3
-**/ios/**/*.moved-aside
-**/ios/**/*.pbxuser
-**/ios/**/*.perspectivev3
-**/ios/**/*sync/
-**/ios/**/.sconsign.dblite
-**/ios/**/.tags*
-**/ios/**/.vagrant/
-**/ios/**/DerivedData/
-**/ios/**/Icon?
-**/ios/**/Pods/
-**/ios/**/.symlinks/
-**/ios/**/profile
-**/ios/**/xcuserdata
-**/ios/.generated/
-**/ios/Flutter/.last_build_id
-**/ios/Flutter/App.framework
-**/ios/Flutter/Flutter.framework
-**/ios/Flutter/Flutter.podspec
-**/ios/Flutter/Generated.xcconfig
-**/ios/Flutter/app.flx
-**/ios/Flutter/app.zip
-**/ios/Flutter/flutter_assets/
-**/ios/Flutter/flutter_export_environment.sh
-**/ios/ServiceDefinitions.json
-**/ios/Runner/GeneratedPluginRegistrant.*
-
-# macOS
-**/macos/Flutter/GeneratedPluginRegistrant.swift
-
-# Coverage
-coverage/
-
-# Symbols
+# Symbolication related
 app.*.symbols
 
-# Exceptions to above rules.
-!**/ios/**/default.mode1v3
-!**/ios/**/default.mode2v3
-!**/ios/**/default.pbxuser
-!**/ios/**/default.perspectivev3
-!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
-!/dev/ci/**/Gemfile.lock
\ No newline at end of file
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
diff --git a/.metadata b/.metadata
index ca28e69..aa90aa8 100644
--- a/.metadata
+++ b/.metadata
@@ -4,7 +4,42 @@
 # This file should be version controlled and should not be manually edited.
 
 version:
-  revision: fba99f6cf9a14512e461e3122c8ddfaa25394e89
-  channel: stable
+  revision: "ba393198430278b6595976de84fe170f553cc728"
+  channel: "stable"
 
 project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: android
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: ios
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: linux
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: macos
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: web
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+    - platform: windows
+      create_revision: ba393198430278b6595976de84fe170f553cc728
+      base_revision: ba393198430278b6595976de84fe170f553cc728
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'
diff --git a/analysis_options.yaml b/analysis_options.yaml
new file mode 100644
index 0000000..0d29021
--- /dev/null
+++ b/analysis_options.yaml
@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options
diff --git a/android/.gitignore b/android/.gitignore
index 0a741cb..6f56801 100644
--- a/android/.gitignore
+++ b/android/.gitignore
@@ -9,3 +9,5 @@ GeneratedPluginRegistrant.java
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
 key.properties
+**/*.keystore
+**/*.jks
diff --git a/android/app/build.gradle b/android/app/build.gradle
index b9d3c12..b1c20b1 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -1,3 +1,9 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
 def localProperties = new Properties()
 def localPropertiesFile = rootProject.file('local.properties')
 if (localPropertiesFile.exists()) {
@@ -6,11 +12,6 @@ if (localPropertiesFile.exists()) {
     }
 }
 
-def flutterRoot = localProperties.getProperty('flutter.sdk')
-if (flutterRoot == null) {
-    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
-}
-
 def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
 if (flutterVersionCode == null) {
     flutterVersionCode = '1'
@@ -21,32 +22,31 @@ if (flutterVersionName == null) {
     flutterVersionName = '1.0'
 }
 
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-
-def keystoreProperties = new Properties()
-def keystorePropertiesFile = rootProject.file('key.properties')
-if (keystorePropertiesFile.exists()) {
-    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
-}
-
 android {
-    compileSdkVersion 28
+    namespace "com.fahrecker.time_progress_calculator"
+    compileSdk flutter.compileSdkVersion
+    ndkVersion flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
     }
 
-    lintOptions {
-        disable 'InvalidPackage'
-    }
-
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.fahrecker.time_progress_calculator"
-        minSdkVersion 16
-        targetSdkVersion 29
+        // You can update the following values to match your application needs.
+        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
+        minSdkVersion flutter.minSdkVersion
+        targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
@@ -71,6 +71,4 @@ flutter {
     source '../..'
 }
 
-dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-}
+dependencies {}
diff --git a/android/app/src/debug/AndroidManifest.xml b/android/app/src/debug/AndroidManifest.xml
index 78ed047..a038e41 100644
--- a/android/app/src/debug/AndroidManifest.xml
+++ b/android/app/src/debug/AndroidManifest.xml
@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.fahrecker.time_progress_calculator">
-    <!-- Flutter needs it to communicate with the running application
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
index 38f8f5a..cea46a3 100644
--- a/android/app/src/main/AndroidManifest.xml
+++ b/android/app/src/main/AndroidManifest.xml
@@ -1,16 +1,12 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.fahrecker.time_progress_calculator">
-    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
-         calls FlutterMain.startInitialization(this); in its onCreate method.
-         In most cases you can leave this as-is, but you if you want to provide
-         additional functionality it is fine to subclass or reimplement
-         FlutterApplication and put your custom class here. -->
     <application
-        android:name="io.flutter.app.FlutterApplication"
-        android:label="Time Progress Tracker"
+        android:label="time_progress_tracker"
+        android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
@@ -24,15 +20,6 @@
               android:name="io.flutter.embedding.android.NormalTheme"
               android:resource="@style/NormalTheme"
               />
-            <!-- Displays an Android View that continues showing the launch screen
-                 Drawable until Flutter paints its first frame, then this splash
-                 screen fades out. A splash screen is useful to avoid any visual
-                 gap between the end of Android's launch screen and the painting of
-                 Flutter's first frame. -->
-            <meta-data
-              android:name="io.flutter.embedding.android.SplashScreenDrawable"
-              android:resource="@drawable/launch_background"
-              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
@@ -44,4 +31,15 @@
             android:name="flutterEmbedding"
             android:value="2" />
     </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility?hl=en and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
 </manifest>
diff --git a/android/app/src/main/res/values-night/styles.xml b/android/app/src/main/res/values-night/styles.xml
index 449a9f9..06952be 100644
--- a/android/app/src/main/res/values-night/styles.xml
+++ b/android/app/src/main/res/values-night/styles.xml
@@ -3,14 +3,14 @@
     <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
     <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your
          Flutter UI initializes, as well as behind your Flutter UI while its
          running.
-         
+
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
     <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>
diff --git a/android/app/src/main/res/values/styles.xml b/android/app/src/main/res/values/styles.xml
index 1f83a33..cb1ef88 100644
--- a/android/app/src/main/res/values/styles.xml
+++ b/android/app/src/main/res/values/styles.xml
@@ -1,18 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting -->
-    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your
          Flutter UI initializes, as well as behind your Flutter UI while its
          running.
-         
+
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
-    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <item name="android:windowBackground">@android:color/white</item>
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
     </style>
 </resources>
diff --git a/android/app/src/profile/AndroidManifest.xml b/android/app/src/profile/AndroidManifest.xml
index 78ed047..a038e41 100644
--- a/android/app/src/profile/AndroidManifest.xml
+++ b/android/app/src/profile/AndroidManifest.xml
@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.fahrecker.time_progress_calculator">
-    <!-- Flutter needs it to communicate with the running application
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
diff --git a/android/build.gradle b/android/build.gradle
index 3100ad2..bc157bd 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,20 +1,7 @@
-buildscript {
-    ext.kotlin_version = '1.3.50'
-    repositories {
-        google()
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-}
-
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
@@ -26,6 +13,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }
diff --git a/android/gradle.properties b/android/gradle.properties
index 38c8d45..598d13f 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,4 +1,3 @@
-org.gradle.jvmargs=-Xmx1536M
-android.enableR8=true
+org.gradle.jvmargs=-Xmx4G
 android.useAndroidX=true
 android.enableJetifier=true
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index 296b146..e1ca574 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip
diff --git a/android/settings.gradle b/android/settings.gradle
index 44e62bc..1d6d19b 100644
--- a/android/settings.gradle
+++ b/android/settings.gradle
@@ -1,11 +1,26 @@
-include ':app'
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }
+    settings.ext.flutterSdkPath = flutterSdkPath()
 
-def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
-def properties = new Properties()
+    includeBuild("${settings.ext.flutterSdkPath}/packages/flutter_tools/gradle")
 
-assert localPropertiesFile.exists()
-localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
 
-def flutterSdkPath = properties.getProperty("flutter.sdk")
-assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"
diff --git a/ios/.gitignore b/ios/.gitignore
index e96ef60..7a7f987 100644
--- a/ios/.gitignore
+++ b/ios/.gitignore
@@ -1,3 +1,4 @@
+**/dgph
 *.mode1v3
 *.mode2v3
 *.moved-aside
@@ -18,6 +19,7 @@ Flutter/App.framework
 Flutter/Flutter.framework
 Flutter/Flutter.podspec
 Flutter/Generated.xcconfig
+Flutter/ephemeral/
 Flutter/app.flx
 Flutter/app.zip
 Flutter/flutter_assets/
diff --git a/ios/Flutter/AppFrameworkInfo.plist b/ios/Flutter/AppFrameworkInfo.plist
index 9367d48..7c56964 100644
--- a/ios/Flutter/AppFrameworkInfo.plist
+++ b/ios/Flutter/AppFrameworkInfo.plist
@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>8.0</string>
+  <string>12.0</string>
 </dict>
 </plist>
diff --git a/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index a28140c..8e3ca5d 100644
--- a/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1510"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -27,8 +27,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES">
-      <Testables>
-      </Testables>
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
@@ -38,8 +36,19 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
-      <AdditionalOptions>
-      </AdditionalOptions>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
@@ -61,8 +70,6 @@
             ReferencedContainer = "container:Runner.xcodeproj">
          </BuildableReference>
       </BuildableProductRunnable>
-      <AdditionalOptions>
-      </AdditionalOptions>
    </LaunchAction>
    <ProfileAction
       buildConfiguration = "Profile"
diff --git a/ios/Runner/Info.plist b/ios/Runner/Info.plist
index 22ba1a4..c1cc360 100644
--- a/ios/Runner/Info.plist
+++ b/ios/Runner/Info.plist
@@ -41,7 +41,9 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
-	<key>UIViewControllerBasedStatusBarAppearance</key>
-	<false/>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
 </dict>
 </plist>
diff --git a/ios/RunnerTests/RunnerTests.swift b/ios/RunnerTests/RunnerTests.swift
new file mode 100644
index 0000000..86a7c3b
--- /dev/null
+++ b/ios/RunnerTests/RunnerTests.swift
@@ -0,0 +1,12 @@
+import Flutter
+import UIKit
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}
diff --git a/pubspec.lock b/pubspec.lock
index 742df77..567e547 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,98 +5,120 @@ packages:
     dependency: transitive
     description:
       name: archive
-      url: "https://pub.dartlang.org"
+      sha256: "22600aa1e926be775fa5fe7e6894e7fb3df9efda8891c73f70fb3262399a432d"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.0.13"
+    version: "3.4.10"
   args:
     dependency: transitive
     description:
       name: args
-      url: "https://pub.dartlang.org"
+      sha256: eef6c46b622e0494a36c5a12d10d77fb4e855501a91c1b9ef9339326e58f0596
+      url: "https://pub.dev"
     source: hosted
-    version: "1.6.0"
+    version: "2.4.2"
   async:
     dependency: transitive
     description:
       name: async
-      url: "https://pub.dartlang.org"
+      sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.5.0"
+    version: "2.11.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
-      url: "https://pub.dartlang.org"
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   characters:
     dependency: transitive
     description:
       name: characters
-      url: "https://pub.dartlang.org"
+      sha256: "04a925763edad70e8443c99234dc3328f442e811f1d8fd1a72f1c8ad0f69a605"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
-  charcode:
+    version: "1.3.0"
+  checked_yaml:
     dependency: transitive
     description:
-      name: charcode
-      url: "https://pub.dartlang.org"
+      name: checked_yaml
+      sha256: feb6bed21949061731a7a75fc5d2aa727cf160b91af9a3e464c5e3a32e28b5ff
+      url: "https://pub.dev"
     source: hosted
-    version: "1.2.0"
+    version: "2.0.3"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      sha256: c05b7406fdabc7a49a3929d4af76bcaccbbffcbcdcf185b082e1ae07da323d19
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.1"
   clock:
     dependency: transitive
     description:
       name: clock
-      url: "https://pub.dartlang.org"
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
+      url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
-      url: "https://pub.dartlang.org"
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
+      url: "https://pub.dev"
     source: hosted
-    version: "1.15.0"
+    version: "1.18.0"
   convert:
     dependency: transitive
     description:
       name: convert
-      url: "https://pub.dartlang.org"
+      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "3.1.1"
   crypto:
     dependency: transitive
     description:
       name: crypto
-      url: "https://pub.dartlang.org"
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.5"
+    version: "3.0.3"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      url: "https://pub.dartlang.org"
+      sha256: d57953e10f9f8327ce64a508a355f0b1ec902193f66288e8cb5070e7c47eeb2d
+      url: "https://pub.dev"
     source: hosted
-    version: "0.1.3"
+    version: "1.0.6"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
-      url: "https://pub.dartlang.org"
+      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
   ffi:
     dependency: transitive
     description:
       name: ffi
-      url: "https://pub.dartlang.org"
+      sha256: d97fffd9d86f3dccc7a9059128b468a99320c69007cc9d41a3a1bda07d4e86dc
+      url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
   file:
     dependency: transitive
     description:
       name: file
-      url: "https://pub.dartlang.org"
+      sha256: "9fd2163d866769f60f4df8ac1dc59f52498d810c356fe78022e383dd3c57c0e1"
+      url: "https://pub.dev"
     source: hosted
     version: "6.1.0"
   flutter:
@@ -108,32 +130,43 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_colorpicker
-      url: "https://pub.dartlang.org"
+      sha256: "458a6ed8ea480eb16ff892aedb4b7092b2804affd7e046591fb03127e8d8ef8b"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.3.5"
+    version: "1.0.3"
   flutter_launcher_icons:
     dependency: "direct dev"
     description:
       name: flutter_launcher_icons
-      url: "https://pub.dartlang.org"
+      sha256: "526faf84284b86a4cb36d20a5e45147747b7563d921373d4ee0559c54fcdbcea"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.8.1"
+    version: "0.13.1"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: e2a421b7e59244faef694ba7b30562e489c2b489866e505074eb005cd7060db7
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
   flutter_picker:
     dependency: "direct main"
     description:
       path: "."
       ref: HEAD
-      resolved-ref: e95d121f54faba889fbf8a850c86dd5cf4aa5c5a
-      url: "git://github.com/yangyxd/flutter_picker.git"
+      resolved-ref: "4a88a436b64d043d2e5412d64035a9bbe7f9d45d"
+      url: "https://github.com/yangyxd/flutter_picker.git"
     source: git
-    version: "1.1.5"
+    version: "2.1.1"
   flutter_redux:
     dependency: "direct main"
     description:
       name: flutter_redux
-      url: "https://pub.dartlang.org"
+      sha256: "3b20be9e08d0038e1452fbfa1fdb1ea0a7c3738c997734530b3c6d0bb5fcdbdc"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.7.0"
+    version: "0.10.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -148,140 +181,216 @@ packages:
     dependency: transitive
     description:
       name: image
-      url: "https://pub.dartlang.org"
+      sha256: "4c68bfd5ae83e700b5204c1e74451e7bf3cf750e6843c6e158289cf56bda018e"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.19"
+    version: "4.1.7"
   js:
     dependency: transitive
     description:
       name: js
-      url: "https://pub.dartlang.org"
+      sha256: d9bdfd70d828eeb352390f81b18d6a354ef2044aa28ef25682079797fa7cd174
+      url: "https://pub.dev"
     source: hosted
     version: "0.6.3"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: b10a7b2ff83d83c777edba3c6a0f97045ddadd56c944e1a23a3fdf43a1bf4467
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.8.1"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "78eb209deea09858f5269f5a5b02be4049535f568c07b275096836f01ea323fa"
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.0"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: b46c5e37c19120a8a01918cfaf293547f47269f7cb4b0058f21531c2465d6ef0
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: a597f72a664dbd293f3bfc51f9ba69816f84dcd403cdac7066cb3f6003f3ab47
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
   matcher:
     dependency: transitive
     description:
       name: matcher
-      url: "https://pub.dartlang.org"
+      sha256: d2323aa2060500f906aa31a895b4030b6da3ebdcc5619d14ce1aada65cd161cb
+      url: "https://pub.dev"
     source: hosted
-    version: "0.12.10"
+    version: "0.12.16+1"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: "0e0a020085b65b6083975e499759762399b4475f766c21668c4ecca34ea74e5a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.8.0"
   meta:
     dependency: "direct main"
     description:
       name: meta
-      url: "https://pub.dartlang.org"
+      sha256: d584fa6707a52763a52446f02cc621b077888fb63b93bbcb1143a7be5a0c0c04
+      url: "https://pub.dev"
     source: hosted
-    version: "1.3.0"
+    version: "1.11.0"
   path:
     dependency: transitive
     description:
       name: path
-      url: "https://pub.dartlang.org"
+      sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.8.0"
+    version: "1.9.0"
   path_provider_linux:
     dependency: transitive
     description:
       name: path_provider_linux
-      url: "https://pub.dartlang.org"
+      sha256: "938d2b6591587bcb009d2109a6ea464fd8fb2a75dc6423171b0d0afb1d27c708"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   path_provider_platform_interface:
     dependency: transitive
     description:
       name: path_provider_platform_interface
-      url: "https://pub.dartlang.org"
+      sha256: "2e14fc474b8acfc4111ac8eb0e37c2fe70234f9f8cd796f1560d03aa1689fa51"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   path_provider_windows:
     dependency: transitive
     description:
       name: path_provider_windows
-      url: "https://pub.dartlang.org"
+      sha256: ecd4d04c225596bcf0fbb86408a1f40084a02dfa412e60172ad52a7f12a781ef
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   percent_indicator:
     dependency: "direct main"
     description:
       name: percent_indicator
-      url: "https://pub.dartlang.org"
+      sha256: c37099ad833a883c9d71782321cb65c3a848c21b6939b6185f0ff6640d05814c
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.9+1"
+    version: "4.2.3"
   petitparser:
     dependency: transitive
     description:
       name: petitparser
-      url: "https://pub.dartlang.org"
+      sha256: c15605cd28af66339f8eb6fbe0e541bfe2d1b72d5825efc6598f3e0a31b9ad27
+      url: "https://pub.dev"
     source: hosted
-    version: "3.1.0"
+    version: "6.0.2"
   platform:
     dependency: transitive
     description:
       name: platform
-      url: "https://pub.dartlang.org"
+      sha256: ebc79f16b5f6b609aad4a5e63447d4795d16f7adee46e93ed03200848c006735
+      url: "https://pub.dev"
     source: hosted
     version: "3.0.0"
   plugin_platform_interface:
     dependency: transitive
     description:
       name: plugin_platform_interface
-      url: "https://pub.dartlang.org"
+      sha256: c2c49e16d42fd6983eb55e44b7f197fdf16b4da7aab7f8e1d21da307cad3fb02
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  pointycastle:
+    dependency: transitive
+    description:
+      name: pointycastle
+      sha256: "43ac87de6e10afabc85c445745a7b799e04de84cebaa4fd7bf55a5e1e9604d29"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.7.4"
   process:
     dependency: transitive
     description:
       name: process
-      url: "https://pub.dartlang.org"
+      sha256: c7b9f7d8a6ee4407ab4f8a7d4a951f8f5659c40df14c0924e2e97c32372e9b14
+      url: "https://pub.dev"
     source: hosted
     version: "4.1.0"
   redux:
     dependency: "direct main"
     description:
       name: redux
-      url: "https://pub.dartlang.org"
+      sha256: "1e86ed5b1a9a717922d0a0ca41f9bf49c1a587d50050e9426fc65b14e85ec4d7"
+      url: "https://pub.dev"
     source: hosted
-    version: "4.0.0+3"
+    version: "5.0.0"
   shared_preferences:
     dependency: "direct main"
     description:
       name: shared_preferences
-      url: "https://pub.dartlang.org"
+      sha256: "2ead304936605c686c0c1a5ce3d9771dbc2e60d76db68b9cd313eb860ca8f9e3"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   shared_preferences_linux:
     dependency: transitive
     description:
       name: shared_preferences_linux
-      url: "https://pub.dartlang.org"
+      sha256: "33fc7c6ced70d226645a9612132fbff9890805df4edd34f30840e7e738866fee"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   shared_preferences_macos:
     dependency: transitive
     description:
       name: shared_preferences_macos
-      url: "https://pub.dartlang.org"
+      sha256: "5d2bad07b196b6ad4cf21af6f7197a87264ef569199502b9352f76e5054f06ae"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   shared_preferences_platform_interface:
     dependency: transitive
     description:
       name: shared_preferences_platform_interface
-      url: "https://pub.dartlang.org"
+      sha256: "992f0fdc46d0a3c0ac2e5859f2de0e577bbe51f78a77ee8f357cbe626a2ad32d"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   shared_preferences_web:
     dependency: transitive
     description:
       name: shared_preferences_web
-      url: "https://pub.dartlang.org"
+      sha256: "09b72ec530a1b1f26cdbec6b138f980d97d4d86ebb86dbf6365369fbd4bb05c8"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   shared_preferences_windows:
     dependency: transitive
     description:
       name: shared_preferences_windows
-      url: "https://pub.dartlang.org"
+      sha256: "76c54a0148780d779a3fe332ece9ba8ad2c9dd0bc717ee7fce58bd06b5e8118f"
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   sky_engine:
@@ -293,86 +402,106 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      url: "https://pub.dartlang.org"
+      sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.8.0"
+    version: "1.10.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
-      url: "https://pub.dartlang.org"
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.10.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      url: "https://pub.dartlang.org"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
-      url: "https://pub.dartlang.org"
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
+      url: "https://pub.dev"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
-      url: "https://pub.dartlang.org"
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
+      url: "https://pub.dev"
     source: hosted
-    version: "1.2.0"
+    version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      url: "https://pub.dartlang.org"
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
+      url: "https://pub.dev"
     source: hosted
-    version: "0.2.19"
+    version: "0.6.1"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
-      url: "https://pub.dartlang.org"
+      sha256: "53bdf7e979cfbf3e28987552fd72f637e63f3c8724c9e56d9246942dc2fa36ee"
+      url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
-      url: "https://pub.dartlang.org"
+      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.4"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: b3d56ff4341b8f182b96aceb2fa20e3dcb336b9f867bc0eafc0de10f1048e957
+      url: "https://pub.dev"
+    source: hosted
+    version: "13.0.0"
   win32:
     dependency: transitive
     description:
       name: win32
-      url: "https://pub.dartlang.org"
+      sha256: c6a3f4e4058b70b46e27b2935de2d1562c50680e7fb44833911d981db73826c2
+      url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
   xdg_directories:
     dependency: transitive
     description:
       name: xdg_directories
-      url: "https://pub.dartlang.org"
+      sha256: "0186b3f2d66be9a12b0295bddcf8b6f8c0b0cc2f85c6287344e2a6366bc28457"
+      url: "https://pub.dev"
     source: hosted
     version: "0.2.0"
   xml:
     dependency: transitive
     description:
       name: xml
-      url: "https://pub.dartlang.org"
+      sha256: b015a8ad1c488f66851d762d3090a21c600e479dc75e68328c52774040cf9226
+      url: "https://pub.dev"
     source: hosted
-    version: "4.5.1"
+    version: "6.5.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
-      url: "https://pub.dartlang.org"
+      sha256: "75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5"
+      url: "https://pub.dev"
     source: hosted
-    version: "2.2.1"
+    version: "3.1.2"
 sdks:
-  dart: ">=2.12.0-259.9.beta <3.0.0"
-  flutter: ">=1.20.0"
+  dart: ">=3.3.1 <4.0.0"
+  flutter: ">=2.12.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 8f7b999..3d16bb6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -2,7 +2,7 @@ name: time_progress_tracker
 description: A Flutter Application to create Timers with a percentage indicator.
 
 # The following line prevents the package from being accidentally published to
-# pub.dev using `pub publish`. This is preferred for private packages.
+# pub.dev using `flutter pub publish`. This is preferred for private packages.
 publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 
 # The following defines the version and build number for your application.
@@ -12,21 +12,28 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # build by specifying --build-name and --build-number, respectively.
 # In Android, build-name is used as versionName while build-number used as versionCode.
 # Read more about Android versioning at https://developer.android.com/studio/publish/versioning
-# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
+# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 version: 0.0.19+19
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=3.3.1 <4.0.0'
 
+# Dependencies specify other packages that your package needs in order to work.
+# To automatically upgrade your package dependencies to the latest versions
+# consider running `flutter pub upgrade --major-versions`. Alternatively,
+# dependencies can be manually updated by changing the version numbers below to
+# the latest version available on pub.dev. To see which dependencies have newer
+# versions available, run `flutter pub outdated`.
 dependencies:
   flutter:
     sdk: flutter
   flutter_colorpicker:
   flutter_redux:
   flutter_picker:
-    git: git://github.com/yangyxd/flutter_picker.git
+    git:
+      url: https://github.com/yangyxd/flutter_picker.git
   meta:
   percent_indicator:
   redux:
@@ -35,17 +42,24 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.3
+  cupertino_icons: ^1.0.6
 
 dev_dependencies:
   flutter_launcher_icons:
   flutter_test:
     sdk: flutter
 
+  # The "flutter_lints" package below contains a set of recommended lints to
+  # encourage good coding practices. The lint set provided by the package is
+  # activated in the `analysis_options.yaml` file located at the root of your
+  # package. See that file for information about deactivating specific lint
+  # rules and activating additional ones.
+  flutter_lints: ^3.0.0
+
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
 
-# The following section is specific to Flutter.
+# The following section is specific to Flutter packages.
 flutter:
 
   # The following line ensures that the Material Icons font is
@@ -59,7 +73,7 @@ flutter:
   #   - images/a_dot_ham.jpeg
 
   # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
+  # https://flutter.dev/assets-and-images/#resolution-aware
 
   # For details regarding adding assets from package dependencies, see
   # https://flutter.dev/assets-and-images/#from-packages
diff --git a/web/icons/Icon-maskable-192.png b/web/icons/Icon-maskable-192.png
new file mode 100644
index 0000000..eb9b4d7
Binary files /dev/null and b/web/icons/Icon-maskable-192.png differ
diff --git a/web/icons/Icon-maskable-512.png b/web/icons/Icon-maskable-512.png
new file mode 100644
index 0000000..d69c566
Binary files /dev/null and b/web/icons/Icon-maskable-512.png differ
diff --git a/web/index.html b/web/index.html
index f7cd0cd..eafe825 100644
--- a/web/index.html
+++ b/web/index.html
@@ -8,10 +8,13 @@
     The path provided below has to start and end with a slash "/" in order for
     it to work correctly.
 
-    Fore more details:
+    For more details:
     * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
+
+    This is a placeholder for base href that will be replaced by the value of
+    the `--base-href` argument provided to `flutter build`.
   -->
-  <base href="/">
+  <base href="$FLUTTER_BASE_HREF">
 
   <meta charset="UTF-8">
   <meta content="IE=Edge" http-equiv="X-UA-Compatible">
@@ -28,18 +31,29 @@
 
   <title>time_progress_tracker</title>
   <link rel="manifest" href="manifest.json">
+
+  <script>
+    // The value below is injected by flutter build, do not touch.
+    const serviceWorkerVersion = null;
+  </script>
+  <!-- This script adds the flutter initialization JS code -->
+  <script src="flutter.js" defer></script>
 </head>
 <body>
-  <!-- This script installs service_worker.js to provide PWA functionality to
-       application. For more information, see:
-       https://developers.google.com/web/fundamentals/primers/service-workers -->
   <script>
-    if ('serviceWorker' in navigator) {
-      window.addEventListener('flutter-first-frame', function () {
-        navigator.serviceWorker.register('flutter_service_worker.js');
+    window.addEventListener('load', function(ev) {
+      // Download main.dart.js
+      _flutter.loader.loadEntrypoint({
+        serviceWorker: {
+          serviceWorkerVersion: serviceWorkerVersion,
+        },
+        onEntrypointLoaded: function(engineInitializer) {
+          engineInitializer.initializeEngine().then(function(appRunner) {
+            appRunner.runApp();
+          });
+        }
       });
-    }
+    });
   </script>
-  <script src="main.dart.js" type="application/javascript"></script>
 </body>
 </html>
diff --git a/web/manifest.json b/web/manifest.json
index 66c48a7..8d31829 100644
--- a/web/manifest.json
+++ b/web/manifest.json
@@ -18,6 +18,18 @@
             "src": "icons/Icon-512.png",
             "sizes": "512x512",
             "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-maskable-192.png",
+            "sizes": "192x192",
+            "type": "image/png",
+            "purpose": "maskable"
+        },
+        {
+            "src": "icons/Icon-maskable-512.png",
+            "sizes": "512x512",
+            "type": "image/png",
+            "purpose": "maskable"
         }
     ]
 }