diff --git a/app/build.gradle b/app/build.gradle
index 4f02fb91..4ec9bd31 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,3 +1,5 @@
+import android.annotation.SuppressLint
+
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-kapt'
@@ -20,8 +22,9 @@ android {
 
         buildConfigField "java.util.Map<String, String>", "GIT_INFO", gitInfoMap
         buildConfigField "String", "VERSION_BASE", "\"${release.versionName}\""
+
         manifestPlaceholders = [
-                buildTimestamp: String.valueOf(System.currentTimeMillis())
+            buildTimestamp: String.valueOf(System.currentTimeMillis())
         ]
 
         multiDexEnabled = true
@@ -36,8 +39,8 @@ android {
             arguments {
                 arg("room.schemaLocation", "$projectDir/schemas")
             }
-            correctErrorTypes true
 
+            correctErrorTypes true
         }
     }
 
@@ -45,10 +48,12 @@ android {
         debug {
             getIsDefault().set(true)
             minifyEnabled = false
+            applicationIdSuffix ".debug"
             manifestPlaceholders = [
-                    buildTimestamp: 0
+                buildTimestamp: 0
             ]
         }
+
         release {
             minifyEnabled = true
             shrinkResources = true
@@ -56,28 +61,35 @@ android {
             proguardFiles fileTree('proguard').asList().toArray()
         }
     }
-    flavorDimensions "platform"
+
+    flavorDimensions += "platform"
+
     productFlavors {
         unofficial {
             getIsDefault().set(true)
             versionName "${release.versionName}-${gitInfo.versionSuffix}"
         }
+
         official {}
         play {}
     }
+
     variantFilter { variant ->
         def flavors = variant.flavors*.name
         setIgnore(variant.buildType.name == "debug" && !flavors.contains("unofficial") || flavors.contains("main"))
     }
+
     sourceSets {
         unofficial {
             java.srcDirs = ["src/main/java", "src/play-not/java"]
             manifest.srcFile("src/play-not/AndroidManifest.xml")
         }
+
         official {
             java.srcDirs = ["src/main/java", "src/play-not/java"]
             manifest.srcFile("src/play-not/AndroidManifest.xml")
         }
+
         play {
             java.srcDirs = ["src/main/java", "src/play/java"]
         }
@@ -86,35 +98,41 @@ android {
     defaultConfig {
         vectorDrawables.useSupportLibrary = true
     }
+
     buildFeatures {
         dataBinding = true
         viewBinding = true
-        buildConfig true
+        buildConfig = true
     }
+
     compileOptions {
         coreLibraryDesugaringEnabled = true
         sourceCompatibility = JavaVersion.VERSION_1_8
         targetCompatibility = JavaVersion.VERSION_1_8
     }
+
     kotlinOptions {
         jvmTarget = "1.8"
     }
+
     packagingOptions {
         resources {
             excludes += ['META-INF/library-core_release.kotlin_module']
         }
     }
+
     externalNativeBuild {
         cmake {
             path "src/main/cpp/CMakeLists.txt"
             version "3.10.2"
         }
     }
+
     lint {
         checkReleaseBuilds false
     }
-    namespace 'pl.szczodrzynski.edziennik'
 
+    namespace 'pl.szczodrzynski.edziennik'
 }
 
 tasks.whenTaskAdded { task ->
diff --git a/app/google-services.json b/app/google-services.json
index 247bf747..8412fad0 100644
--- a/app/google-services.json
+++ b/app/google-services.json
@@ -36,6 +36,37 @@
           "status": 2
         }
       }
+    },
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:640759989760:android:4aa71407b25cdc8d",
+        "android_client_info": {
+          "package_name": "pl.szczodrzynski.edziennik.debug"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "640759989760-6f8q00u864lnuh3gh36e8g4cer9lv8pv.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyAvq9HMPxulz9ntdAHZ0eZuPf2YQs4nDSU"
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 1
+        },
+        "appinvite_service": {
+          "status": 1,
+          "other_platform_oauth_client": []
+        },
+        "ads_service": {
+          "status": 2
+        }
+      }
     }
   ],
   "configuration_version": "1"
diff --git a/app/src/debug/res/mipmap-hdpi/ic_launcher_monochrome_foreground.png b/app/src/debug/res/mipmap-hdpi/ic_launcher_monochrome_foreground.png
new file mode 100644
index 00000000..c9d04eb5
Binary files /dev/null and b/app/src/debug/res/mipmap-hdpi/ic_launcher_monochrome_foreground.png differ
diff --git a/app/src/debug/res/mipmap-mdpi/ic_launcher_monochrome_foreground.png b/app/src/debug/res/mipmap-mdpi/ic_launcher_monochrome_foreground.png
new file mode 100644
index 00000000..60b46299
Binary files /dev/null and b/app/src/debug/res/mipmap-mdpi/ic_launcher_monochrome_foreground.png differ
diff --git a/app/src/debug/res/mipmap-xhdpi/ic_launcher_monochrome_foreground.png b/app/src/debug/res/mipmap-xhdpi/ic_launcher_monochrome_foreground.png
new file mode 100644
index 00000000..78a6d41c
Binary files /dev/null and b/app/src/debug/res/mipmap-xhdpi/ic_launcher_monochrome_foreground.png differ
diff --git a/app/src/debug/res/mipmap-xxhdpi/ic_launcher_monochrome_foreground.png b/app/src/debug/res/mipmap-xxhdpi/ic_launcher_monochrome_foreground.png
new file mode 100644
index 00000000..88b09b03
Binary files /dev/null and b/app/src/debug/res/mipmap-xxhdpi/ic_launcher_monochrome_foreground.png differ
diff --git a/app/src/debug/res/mipmap-xxxhdpi/ic_launcher_monochrome_foreground.png b/app/src/debug/res/mipmap-xxxhdpi/ic_launcher_monochrome_foreground.png
new file mode 100644
index 00000000..745f84c0
Binary files /dev/null and b/app/src/debug/res/mipmap-xxxhdpi/ic_launcher_monochrome_foreground.png differ
diff --git a/app/src/debug/res/values/ic_launcher_background.xml b/app/src/debug/res/values/ic_launcher_background.xml
new file mode 100644
index 00000000..4935ad16
--- /dev/null
+++ b/app/src/debug/res/values/ic_launcher_background.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) Kuba Szczodrzyński 2020-5-11.
+  -->
+
+<resources>
+    <color name="ic_launcher_background">#FF7D54</color>
+</resources>
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index c7f3d68c..c5335573 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -41,7 +41,6 @@
                                                                     |___/ -->
         <activity android:name=".MainActivity"
             android:configChanges="orientation|screenSize"
-            android:label="@string/app_name"
             android:launchMode="singleTop"
             android:exported="true"
             android:theme="@style/SplashTheme">
@@ -134,7 +133,6 @@
             android:theme="@style/DeadTheme" />
         <activity android:name=".ui.intro.ChangelogIntroActivity"
             android:configChanges="orientation|keyboardHidden"
-            android:label="@string/app_name"
             android:exported="false"
             android:theme="@style/Theme.Intro" />
         <activity android:name=".ui.login.LoginActivity"
@@ -147,7 +145,6 @@
             android:theme="@style/AppTheme.Black" />
         <activity android:name=".ui.feedback.FeedbackActivity"
             android:configChanges="orientation|screenSize|keyboardHidden"
-            android:label="@string/app_name"
             android:exported="false"
             android:theme="@style/AppTheme" />
         <activity android:name=".ui.settings.SettingsLicenseActivity"