diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 6161d07..07fe8ef 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -1,4 +1,5 @@
 plugins {
+    id("com.google.devtools.ksp")
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
@@ -37,6 +38,13 @@ android {
 }
 
 dependencies {
+    implementation(libs.androidx.room.runtime)
+    implementation(libs.androidx.room.ktx)
+    ksp(libs.androidx.room.compiler)
+
+    // Für Coroutines Support
+    implementation(libs.kotlinx.coroutines.android)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
 
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.lifecycle.runtime.ktx)
diff --git a/app/src/main/java/de/webfussel/soulecho/MainActivity.kt b/app/src/main/java/de/webfussel/soulecho/MainActivity.kt
index 71e4ddc..32b1a76 100644
--- a/app/src/main/java/de/webfussel/soulecho/MainActivity.kt
+++ b/app/src/main/java/de/webfussel/soulecho/MainActivity.kt
@@ -4,30 +4,36 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.CompositionLocalProvider
-import androidx.compose.runtime.compositionLocalOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
+import androidx.lifecycle.viewmodel.compose.viewModel
+import de.webfussel.soulecho.data.database.MoodDatabase
+import de.webfussel.soulecho.data.repository.MoodRepository
 import de.webfussel.soulecho.mood.MoodSection
 import de.webfussel.soulecho.mood.MoodWithInfo
 import de.webfussel.soulecho.mood.PossibleMood
 import de.webfussel.soulecho.navigation.Drawer
 import de.webfussel.soulecho.ui.theme.SoulEchoTheme
+import de.webfussel.soulecho.viewmodel.MoodViewModel
+import de.webfussel.soulecho.viewmodel.MoodViewModelFactory
+import kotlinx.coroutines.launch
 
 val LocalMoodState = compositionLocalOf<MoodWithInfo> { error("No MoodState provided") }
 
 @Composable
-fun SoulEchoApp() {
+fun SoulEchoApp(moodViewModel: MoodViewModel) {
     var currentMood by remember { mutableStateOf(MoodWithInfo(mood = PossibleMood.HAPPY, info = "")) }
+    val coroutineScope = rememberCoroutineScope()
 
     CompositionLocalProvider(LocalMoodState provides currentMood) {
         SoulEchoTheme () {
             Drawer () {
                 MoodSection(
-                    onMoodChange = { currentMood = it }
+                    onMoodChange = {
+                        currentMood = it
+                        coroutineScope.launch {
+                            moodViewModel.saveMood(it)
+                        }
+                    }
                 )
             }
         }
@@ -35,11 +41,21 @@ fun SoulEchoApp() {
 }
 
 class MainActivity : ComponentActivity() {
+    private lateinit var moodRepository: MoodRepository
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        val database = MoodDatabase.getDatabase(this)
+        moodRepository = MoodRepository(database.moodDao())
+
         enableEdgeToEdge()
         setContent {
-            SoulEchoApp()
+            val moodViewModel: MoodViewModel = viewModel(
+                factory = MoodViewModelFactory(moodRepository)
+            )
+
+            SoulEchoApp(moodViewModel)
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/data/converter/Converters.kt b/app/src/main/java/de/webfussel/soulecho/data/converter/Converters.kt
new file mode 100644
index 0000000..528b7e6
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/data/converter/Converters.kt
@@ -0,0 +1,29 @@
+package de.webfussel.soulecho.data.converter
+
+import androidx.room.TypeConverter
+import de.webfussel.soulecho.mood.PossibleMood
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+
+class Converters {
+
+    @TypeConverter
+    fun fromPossibleMood(mood: PossibleMood): String {
+        return mood.name
+    }
+
+    @TypeConverter
+    fun toPossibleMood(moodString: String): PossibleMood {
+        return PossibleMood.valueOf(moodString)
+    }
+
+    @TypeConverter
+    fun fromLocalDateTime(dateTime: LocalDateTime): String {
+        return dateTime.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME)
+    }
+
+    @TypeConverter
+    fun toLocalDateTime(dateTimeString: String): LocalDateTime {
+        return LocalDateTime.parse(dateTimeString, DateTimeFormatter.ISO_LOCAL_DATE_TIME)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/data/dao/MoodDao.kt b/app/src/main/java/de/webfussel/soulecho/data/dao/MoodDao.kt
new file mode 100644
index 0000000..456fc46
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/data/dao/MoodDao.kt
@@ -0,0 +1,34 @@
+package de.webfussel.soulecho.data.dao
+
+import androidx.room.*
+import de.webfussel.soulecho.data.entity.MoodEntity
+import de.webfussel.soulecho.mood.PossibleMood
+import kotlinx.coroutines.flow.Flow
+
+@Dao
+interface MoodDao {
+
+    @Insert
+    suspend fun insertMood(mood: MoodEntity): Long
+
+    @Query("SELECT * FROM moods ORDER BY timestamp DESC")
+    fun getAllMoods(): Flow<List<MoodEntity>>
+
+    @Query("SELECT * FROM moods WHERE id = :id")
+    suspend fun getMoodById(id: Long): MoodEntity?
+
+    @Query("SELECT * FROM moods WHERE mood = :mood ORDER BY timestamp DESC")
+    fun getMoodsByType(mood: PossibleMood): Flow<List<MoodEntity>>
+
+    @Query("SELECT * FROM moods WHERE DATE(timestamp) = DATE('now', 'localtime') ORDER BY timestamp DESC")
+    fun getTodaysMoods(): Flow<List<MoodEntity>>
+
+    @Update
+    suspend fun updateMood(mood: MoodEntity)
+
+    @Delete
+    suspend fun deleteMood(mood: MoodEntity)
+
+    @Query("DELETE FROM moods")
+    suspend fun deleteAllMoods()
+}
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/data/database/MoodDatabase.kt b/app/src/main/java/de/webfussel/soulecho/data/database/MoodDatabase.kt
new file mode 100644
index 0000000..8811554
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/data/database/MoodDatabase.kt
@@ -0,0 +1,38 @@
+package de.webfussel.soulecho.data.database
+
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import androidx.room.TypeConverters
+import android.content.Context
+import de.webfussel.soulecho.data.converter.Converters
+import de.webfussel.soulecho.data.dao.MoodDao
+import de.webfussel.soulecho.data.entity.MoodEntity
+
+@Database(
+    entities = [MoodEntity::class],
+    version = 1,
+    exportSchema = false
+)
+@TypeConverters(Converters::class)
+abstract class MoodDatabase : RoomDatabase() {
+
+    abstract fun moodDao(): MoodDao
+
+    companion object {
+        @Volatile
+        private var INSTANCE: MoodDatabase? = null
+
+        fun getDatabase(context: Context): MoodDatabase {
+            return INSTANCE ?: synchronized(this) {
+                val instance = Room.databaseBuilder(
+                    context.applicationContext,
+                    MoodDatabase::class.java,
+                    "mood_database"
+                ).build()
+                INSTANCE = instance
+                instance
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/data/entity/MoodEntity.kt b/app/src/main/java/de/webfussel/soulecho/data/entity/MoodEntity.kt
new file mode 100644
index 0000000..e4a7f48
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/data/entity/MoodEntity.kt
@@ -0,0 +1,15 @@
+package de.webfussel.soulecho.data.entity
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import de.webfussel.soulecho.mood.PossibleMood
+import java.time.LocalDateTime
+
+@Entity(tableName = "moods")
+data class MoodEntity(
+    @PrimaryKey(autoGenerate = true)
+    val id: Long = 0,
+    val mood: PossibleMood,
+    val info: String,
+    val timestamp: LocalDateTime = LocalDateTime.now()
+)
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/data/repository/MoodRepository.kt b/app/src/main/java/de/webfussel/soulecho/data/repository/MoodRepository.kt
new file mode 100644
index 0000000..8aa6834
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/data/repository/MoodRepository.kt
@@ -0,0 +1,51 @@
+package de.webfussel.soulecho.data.repository
+
+import de.webfussel.soulecho.data.dao.MoodDao
+import de.webfussel.soulecho.data.entity.MoodEntity
+import de.webfussel.soulecho.mood.MoodWithInfo
+import de.webfussel.soulecho.mood.PossibleMood
+import kotlinx.coroutines.flow.Flow
+
+class MoodRepository(private val moodDao: MoodDao) {
+
+    suspend fun saveMood(moodWithInfo: MoodWithInfo): Long {
+        val moodEntity = MoodEntity(
+            mood = moodWithInfo.mood,
+            info = moodWithInfo.info
+        )
+        return moodDao.insertMood(moodEntity)
+    }
+
+    fun getAllMoods(): Flow<List<MoodEntity>> {
+        return moodDao.getAllMoods()
+    }
+
+    fun getMoodsByType(mood: PossibleMood): Flow<List<MoodEntity>> {
+        return moodDao.getMoodsByType(mood)
+    }
+
+    fun getTodaysMoods(): Flow<List<MoodEntity>> {
+        return moodDao.getTodaysMoods()
+    }
+
+    suspend fun getMoodById(id: Long): MoodEntity? {
+        return moodDao.getMoodById(id)
+    }
+
+    suspend fun updateMood(moodEntity: MoodEntity) {
+        moodDao.updateMood(moodEntity)
+    }
+
+    suspend fun deleteMood(moodEntity: MoodEntity) {
+        moodDao.deleteMood(moodEntity)
+    }
+
+    suspend fun deleteAllMoods() {
+        moodDao.deleteAllMoods()
+    }
+
+    // Hilfsmethode um MoodEntity zu MoodWithInfo zu konvertieren
+    fun MoodEntity.toMoodWithInfo(): MoodWithInfo {
+        return MoodWithInfo(mood = this.mood, info = this.info)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/de/webfussel/soulecho/mood/Choice.kt b/app/src/main/java/de/webfussel/soulecho/mood/Choice.kt
index a872c08..eaf0882 100644
--- a/app/src/main/java/de/webfussel/soulecho/mood/Choice.kt
+++ b/app/src/main/java/de/webfussel/soulecho/mood/Choice.kt
@@ -1,11 +1,9 @@
 package de.webfussel.soulecho.mood
 
-import android.inputmethodservice.Keyboard
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -22,8 +20,6 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
-import androidx.compose.material3.TextField
-import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
diff --git a/app/src/main/java/de/webfussel/soulecho/mood/Section.kt b/app/src/main/java/de/webfussel/soulecho/mood/Section.kt
index 35abb39..03a0df1 100644
--- a/app/src/main/java/de/webfussel/soulecho/mood/Section.kt
+++ b/app/src/main/java/de/webfussel/soulecho/mood/Section.kt
@@ -51,24 +51,46 @@ fun MoodSection(
             Text(mood.label, fontWeight = FontWeight.Bold, fontSize = 32.sp)
             Text(currentMood.info)
         }
-        FloatingActionButton(
-            containerColor = theme.primary,
-            onClick = {
-                dialogOpen = true
-            },
-            modifier = Modifier
-                .align(Alignment.BottomEnd)
-                .size(100.dp)
-                .padding(24.dp),
-
-            ) {
-            Icon(
-                painter = painterResource(R.drawable.face_smile_plus),
-                contentDescription = "Change Mood",
+        Column (
+            horizontalAlignment = Alignment.End,
+            modifier = Modifier.align(Alignment.BottomEnd),
+        ) {
+            FloatingActionButton(
+                containerColor = theme.primary,
+                onClick = {
+                    dialogOpen = true
+                },
                 modifier = Modifier
-                    .size(32.dp)
-                    .padding(start = 4.dp)
-            )
+                    .size(64.dp)
+                    .padding(end = 24.dp, bottom = 24.dp),
+
+                ) {
+                Icon(
+                    painter = painterResource(R.drawable.pen),
+                    contentDescription = "Change Mood",
+                    modifier = Modifier
+                        .size(32.dp)
+                        .padding(6.dp)
+                )
+            }
+            FloatingActionButton(
+                containerColor = theme.primary,
+                onClick = {
+                    dialogOpen = true
+                },
+                modifier = Modifier
+                    .size(80.dp)
+                    .padding(end = 24.dp, bottom = 24.dp),
+
+                ) {
+                Icon(
+                    painter = painterResource(R.drawable.face_smile_plus),
+                    contentDescription = "Change Mood",
+                    modifier = Modifier
+                        .size(32.dp)
+                        .padding(start = 4.dp)
+                )
+            }
         }
         when {
             dialogOpen -> MoodChoice(
diff --git a/app/src/main/java/de/webfussel/soulecho/viewmodel/MoodViewModel.kt b/app/src/main/java/de/webfussel/soulecho/viewmodel/MoodViewModel.kt
new file mode 100644
index 0000000..18dd63e
--- /dev/null
+++ b/app/src/main/java/de/webfussel/soulecho/viewmodel/MoodViewModel.kt
@@ -0,0 +1,57 @@
+package de.webfussel.soulecho.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import de.webfussel.soulecho.data.entity.MoodEntity
+import de.webfussel.soulecho.data.repository.MoodRepository
+import de.webfussel.soulecho.mood.MoodWithInfo
+import de.webfussel.soulecho.mood.PossibleMood
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.launch
+
+class MoodViewModel(private val repository: MoodRepository) : ViewModel() {
+
+    val allMoods: Flow<List<MoodEntity>> = repository.getAllMoods()
+    val todaysMoods: Flow<List<MoodEntity>> = repository.getTodaysMoods()
+
+    suspend fun saveMood(moodWithInfo: MoodWithInfo): Long {
+        return repository.saveMood(moodWithInfo)
+    }
+
+    fun getMoodsByType(mood: PossibleMood): Flow<List<MoodEntity>> {
+        return repository.getMoodsByType(mood)
+    }
+
+    suspend fun getMoodById(id: Long): MoodEntity? {
+        return repository.getMoodById(id)
+    }
+
+    fun updateMood(moodEntity: MoodEntity) {
+        viewModelScope.launch {
+            repository.updateMood(moodEntity)
+        }
+    }
+
+    fun deleteMood(moodEntity: MoodEntity) {
+        viewModelScope.launch {
+            repository.deleteMood(moodEntity)
+        }
+    }
+
+    fun deleteAllMoods() {
+        viewModelScope.launch {
+            repository.deleteAllMoods()
+        }
+    }
+}
+
+class MoodViewModelFactory(private val repository: MoodRepository) : ViewModelProvider.Factory {
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(MoodViewModel::class.java)) {
+            @Suppress("UNCHECKED_CAST")
+            return MoodViewModel(repository) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable/bars_staggered.xml b/app/src/main/res/drawable/bars_staggered.xml
index e842729..b3d680d 100644
--- a/app/src/main/res/drawable/bars_staggered.xml
+++ b/app/src/main/res/drawable/bars_staggered.xml
@@ -1,7 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="640" android:viewportWidth="640" android:width="24dp">
       
-    <path android:fillAlpha="0.4" android:fillColor="#000" android:pathData="M128,320C128,302.3 142.3,288 160,288L544,288C561.7,288 576,302.3 576,320C576,337.7 561.7,352 544,352L160,352C142.3,352 128,337.7 128,320z" android:strokeAlpha="0.4"/>
+    <path android:fillAlpha="0.4" android:fillColor="#808080" android:pathData="M128,320C128,302.3 142.3,288 160,288L544,288C561.7,288 576,302.3 576,320C576,337.7 561.7,352 544,352L160,352C142.3,352 128,337.7 128,320z" android:strokeAlpha="0.4"/>
       
-    <path android:fillColor="#000" android:pathData="M512,160C512,142.3 497.7,128 480,128L96,128C78.3,128 64,142.3 64,160C64,177.7 78.3,192 96,192L480,192C497.7,192 512,177.7 512,160zM512,480C512,462.3 497.7,448 480,448L96,448C78.3,448 64,462.3 64,480C64,497.7 78.3,512 96,512L480,512C497.7,512 512,497.7 512,480z"/>
+    <path android:fillColor="#808080" android:pathData="M512,160C512,142.3 497.7,128 480,128L96,128C78.3,128 64,142.3 64,160C64,177.7 78.3,192 96,192L480,192C497.7,192 512,177.7 512,160zM512,480C512,462.3 497.7,448 480,448L96,448C78.3,448 64,462.3 64,480C64,497.7 78.3,512 96,512L480,512C497.7,512 512,497.7 512,480z"/>
     
 </vector>
diff --git a/app/src/main/res/drawable/calendar_days.xml b/app/src/main/res/drawable/calendar_days.xml
index da29040..9fa9030 100644
--- a/app/src/main/res/drawable/calendar_days.xml
+++ b/app/src/main/res/drawable/calendar_days.xml
@@ -1,7 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="640" android:viewportWidth="640" android:width="24dp">
       
-    <path android:fillAlpha="0.4" android:fillColor="#000" android:pathData="M112,256L112,336L240,336L240,256L112,256zM112,352L112,432L240,432L240,352L112,352zM112,448L112,480C112,506.5 133.5,528 160,528L240,528L240,448L112,448zM256,256L256,336L384,336L384,256L256,256zM256,352L256,432L384,432L384,352L256,352zM256,448L256,528L384,528L384,448L256,448zM400,256L400,336L528,336L528,256L400,256zM400,352L400,432L528,432L528,352L400,352zM400,448L400,528L480,528C506.5,528 528,506.5 528,480L528,448L400,448z" android:strokeAlpha="0.4"/>
+    <path android:fillAlpha="0.4" android:fillColor="#808080" android:pathData="M112,256L112,336L240,336L240,256L112,256zM112,352L112,432L240,432L240,352L112,352zM112,448L112,480C112,506.5 133.5,528 160,528L240,528L240,448L112,448zM256,256L256,336L384,336L384,256L256,256zM256,352L256,432L384,432L384,352L256,352zM256,448L256,528L384,528L384,448L256,448zM400,256L400,336L528,336L528,256L400,256zM400,352L400,432L528,432L528,352L400,352zM400,448L400,528L480,528C506.5,528 528,506.5 528,480L528,448L400,448z" android:strokeAlpha="0.4"/>
       
-    <path android:fillColor="#000" android:pathData="M224,72C224,67.6 220.4,64 216,64C211.6,64 208,67.6 208,72L208,128L160,128C124.7,128 96,156.7 96,192L96,480C96,515.3 124.7,544 160,544L480,544C515.3,544 544,515.3 544,480L544,192C544,156.7 515.3,128 480,128L432,128L432,72C432,67.6 428.4,64 424,64C419.6,64 416,67.6 416,72L416,128L224,128L224,72zM208,144L208,168C208,172.4 211.6,176 216,176C220.4,176 224,172.4 224,168L224,144L416,144L416,168C416,172.4 419.6,176 424,176C428.4,176 432,172.4 432,168L432,144L480,144C506.5,144 528,165.5 528,192L528,240L112,240L112,192C112,165.5 133.5,144 160,144L208,144zM400,256L528,256L528,336L400,336L400,256zM384,256L384,336L256,336L256,256L384,256zM240,256L240,336L112,336L112,256L240,256zM112,352L240,352L240,432L112,432L112,352zM112,448L240,448L240,528L160,528C133.5,528 112,506.5 112,480L112,448zM256,528L256,448L384,448L384,528L256,528zM400,528L400,448L528,448L528,480C528,506.5 506.5,528 480,528L400,528zM528,432L400,432L400,352L528,352L528,432zM384,432L256,432L256,352L384,352L384,432z"/>
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diff --git a/app/src/main/res/drawable/clock_rotate_left.xml b/app/src/main/res/drawable/clock_rotate_left.xml
index 1124611..02de015 100644
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diff --git a/app/src/main/res/drawable/face_anxious_sweat.xml b/app/src/main/res/drawable/face_anxious_sweat.xml
index 57be584..9bca1eb 100644
--- a/app/src/main/res/drawable/face_anxious_sweat.xml
+++ b/app/src/main/res/drawable/face_anxious_sweat.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_confounded.xml b/app/src/main/res/drawable/face_confounded.xml
index 5935700..d4ab2cb 100644
--- a/app/src/main/res/drawable/face_confounded.xml
+++ b/app/src/main/res/drawable/face_confounded.xml
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diff --git a/app/src/main/res/drawable/face_disappointed.xml b/app/src/main/res/drawable/face_disappointed.xml
index 3ae086a..eb3bd4b 100644
--- a/app/src/main/res/drawable/face_disappointed.xml
+++ b/app/src/main/res/drawable/face_disappointed.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_dotted.xml b/app/src/main/res/drawable/face_dotted.xml
index 24c3570..e544ef6 100644
--- a/app/src/main/res/drawable/face_dotted.xml
+++ b/app/src/main/res/drawable/face_dotted.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_frown.xml b/app/src/main/res/drawable/face_frown.xml
index 9067f96..a21ae92 100644
--- a/app/src/main/res/drawable/face_frown.xml
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diff --git a/app/src/main/res/drawable/face_meh.xml b/app/src/main/res/drawable/face_meh.xml
index 2fc84ef..bb0909b 100644
--- a/app/src/main/res/drawable/face_meh.xml
+++ b/app/src/main/res/drawable/face_meh.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_pouting.xml b/app/src/main/res/drawable/face_pouting.xml
index 5837af5..a396c31 100644
--- a/app/src/main/res/drawable/face_pouting.xml
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diff --git a/app/src/main/res/drawable/face_relieved.xml b/app/src/main/res/drawable/face_relieved.xml
index 2a42e20..4753e10 100644
--- a/app/src/main/res/drawable/face_relieved.xml
+++ b/app/src/main/res/drawable/face_relieved.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_scream.xml b/app/src/main/res/drawable/face_scream.xml
index 3a2beb4..7caf523 100644
--- a/app/src/main/res/drawable/face_scream.xml
+++ b/app/src/main/res/drawable/face_scream.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_smile.xml b/app/src/main/res/drawable/face_smile.xml
index ad10318..4606834 100644
--- a/app/src/main/res/drawable/face_smile.xml
+++ b/app/src/main/res/drawable/face_smile.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_smile_plus.xml b/app/src/main/res/drawable/face_smile_plus.xml
index dbf9dbb..1cb65ce 100644
--- a/app/src/main/res/drawable/face_smile_plus.xml
+++ b/app/src/main/res/drawable/face_smile_plus.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/face_smile_relaxed.xml b/app/src/main/res/drawable/face_smile_relaxed.xml
index 93d5478..62012db 100644
--- a/app/src/main/res/drawable/face_smile_relaxed.xml
+++ b/app/src/main/res/drawable/face_smile_relaxed.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/gear_code.xml b/app/src/main/res/drawable/gear_code.xml
index a809f09..7ed70d4 100644
--- a/app/src/main/res/drawable/gear_code.xml
+++ b/app/src/main/res/drawable/gear_code.xml
@@ -1,7 +1,7 @@
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diff --git a/app/src/main/res/drawable/gears.xml b/app/src/main/res/drawable/gears.xml
index 17aa734..79bfc5d 100644
--- a/app/src/main/res/drawable/gears.xml
+++ b/app/src/main/res/drawable/gears.xml
@@ -1,7 +1,7 @@
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 </vector>
diff --git a/app/src/main/res/drawable/pen.xml b/app/src/main/res/drawable/pen.xml
new file mode 100644
index 0000000..53d4e49
--- /dev/null
+++ b/app/src/main/res/drawable/pen.xml
@@ -0,0 +1,7 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="640" android:viewportWidth="640" android:width="24dp">
+      
+    <path android:fillAlpha="0.4" android:fillColor="#808080" android:pathData="M80.3,549.9C79.5,552.7 80.3,555.7 82.4,557.7C84.5,559.7 87.4,560.5 90.2,559.8L218,524.3C230,521 240.9,514.6 249.6,505.8L468,287.3L352.7,172L134.2,390.4C125.4,399.2 119.1,410.1 115.7,422L80.3,549.9z" android:strokeAlpha="0.4"/>
+      
+    <path android:fillColor="#808080" android:pathData="M428.2,96.5C438.8,85.9 453.1,80 468,80C482.9,80 497.2,85.9 507.8,96.5L543.5,132.2C554.1,142.8 560,157.1 560,172C560,186.9 554.1,201.2 543.5,211.8L479.3,276L364,160.7L428.2,96.5zM352.7,172L468,287.3L249.6,505.8C240.8,514.6 229.9,520.9 218,524.3L90.1,559.7C87.3,560.5 84.3,559.7 82.3,557.6C80.3,555.5 79.5,552.6 80.2,549.8L115.8,422.1C119.1,410.1 125.5,399.2 134.3,390.5L352.7,172zM468,64C448.8,64 430.4,71.6 416.9,85.2L122.9,379.2C112.2,389.9 104.4,403.3 100.3,417.9L64.9,545.6C62.6,553.9 64.9,562.9 71.1,569C77.3,575.1 86.2,577.5 94.5,575.2L222.3,539.7C236.9,535.6 250.2,527.9 261,517.1L555,223.1C568.4,209.6 576,191.2 576,172C576,152.8 568.4,134.4 554.8,120.9L519.1,85.2C505.6,71.6 487.2,64 468,64z"/>
+    
+</vector>
diff --git a/app/src/main/res/drawable/square_info.xml b/app/src/main/res/drawable/square_info.xml
index 4f32e92..b23d647 100644
--- a/app/src/main/res/drawable/square_info.xml
+++ b/app/src/main/res/drawable/square_info.xml
@@ -1,7 +1,7 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="640" android:viewportWidth="640" android:width="24dp">
       
-    <path android:fillAlpha="0.4" android:fillColor="#000" android:pathData="M112,160L112,480C112,506.5 133.5,528 160,528L480,528C506.5,528 528,506.5 528,480L528,160C528,133.5 506.5,112 480,112L160,112C133.5,112 112,133.5 112,160zM264,280C264,275.6 267.6,272 272,272L320,272C324.4,272 328,275.6 328,280L328,416L368,416C372.4,416 376,419.6 376,424C376,428.4 372.4,432 368,432L272,432C267.6,432 264,428.4 264,424C264,419.6 267.6,416 272,416L312,416L312,288L272,288C267.6,288 264,284.4 264,280zM336,224C336,232.8 328.8,240 320,240C311.2,240 304,232.8 304,224C304,215.2 311.2,208 320,208C328.8,208 336,215.2 336,224z" android:strokeAlpha="0.4"/>
+    <path android:fillAlpha="0.4" android:fillColor="#808080" android:pathData="M112,160L112,480C112,506.5 133.5,528 160,528L480,528C506.5,528 528,506.5 528,480L528,160C528,133.5 506.5,112 480,112L160,112C133.5,112 112,133.5 112,160zM264,280C264,275.6 267.6,272 272,272L320,272C324.4,272 328,275.6 328,280L328,416L368,416C372.4,416 376,419.6 376,424C376,428.4 372.4,432 368,432L272,432C267.6,432 264,428.4 264,424C264,419.6 267.6,416 272,416L312,416L312,288L272,288C267.6,288 264,284.4 264,280zM336,224C336,232.8 328.8,240 320,240C311.2,240 304,232.8 304,224C304,215.2 311.2,208 320,208C328.8,208 336,215.2 336,224z" android:strokeAlpha="0.4"/>
       
-    <path android:fillColor="#000" android:pathData="M160,112C133.5,112 112,133.5 112,160L112,480C112,506.5 133.5,528 160,528L480,528C506.5,528 528,506.5 528,480L528,160C528,133.5 506.5,112 480,112L160,112zM96,160C96,124.7 124.7,96 160,96L480,96C515.3,96 544,124.7 544,160L544,480C544,515.3 515.3,544 480,544L160,544C124.7,544 96,515.3 96,480L96,160zM304,224C304,215.2 311.2,208 320,208C328.8,208 336,215.2 336,224C336,232.8 328.8,240 320,240C311.2,240 304,232.8 304,224zM272,272L320,272C324.4,272 328,275.6 328,280L328,416L368,416C372.4,416 376,419.6 376,424C376,428.4 372.4,432 368,432L272,432C267.6,432 264,428.4 264,424C264,419.6 267.6,416 272,416L312,416L312,288L272,288C267.6,288 264,284.4 264,280C264,275.6 267.6,272 272,272z"/>
+    <path android:fillColor="#808080" android:pathData="M160,112C133.5,112 112,133.5 112,160L112,480C112,506.5 133.5,528 160,528L480,528C506.5,528 528,506.5 528,480L528,160C528,133.5 506.5,112 480,112L160,112zM96,160C96,124.7 124.7,96 160,96L480,96C515.3,96 544,124.7 544,160L544,480C544,515.3 515.3,544 480,544L160,544C124.7,544 96,515.3 96,480L96,160zM304,224C304,215.2 311.2,208 320,208C328.8,208 336,215.2 336,224C336,232.8 328.8,240 320,240C311.2,240 304,232.8 304,224zM272,272L320,272C324.4,272 328,275.6 328,280L328,416L368,416C372.4,416 376,419.6 376,424C376,428.4 372.4,432 368,432L272,432C267.6,432 264,428.4 264,424C264,419.6 267.6,416 272,416L312,416L312,288L272,288C267.6,288 264,284.4 264,280C264,275.6 267.6,272 272,272z"/>
     
 </vector>
diff --git a/build.gradle.kts b/build.gradle.kts
index 952b930..f3bc0ed 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
+    id("com.google.devtools.ksp") version "2.0.21-1.0.27" apply false
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.kotlin.android) apply false
     alias(libs.plugins.kotlin.compose) apply false
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index c9e697e..9e2cc10 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -5,12 +5,19 @@ coreKtx = "1.10.1"
 junit = "4.13.2"
 junitVersion = "1.1.5"
 espressoCore = "3.5.1"
+kotlinxCoroutinesAndroid = "1.7.3"
 lifecycleRuntimeKtx = "2.6.1"
 activityCompose = "1.8.0"
 composeBom = "2024.09.00"
+lifecycleViewmodelCompose = "2.9.2"
+roomRuntime = "2.7.2"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+androidx-lifecycle-viewmodel-compose = { module = "androidx.lifecycle:lifecycle-viewmodel-compose", version.ref = "lifecycleViewmodelCompose" }
+androidx-room-compiler = { module = "androidx.room:room-compiler", version.ref = "roomRuntime" }
+androidx-room-ktx = { module = "androidx.room:room-ktx", version.ref = "roomRuntime" }
+androidx-room-runtime = { module = "androidx.room:room-runtime", version.ref = "roomRuntime" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
 androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
@@ -24,6 +31,7 @@ androidx-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-toolin
 androidx-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
 androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
 androidx-material3 = { group = "androidx.compose.material3", name = "material3" }
+kotlinx-coroutines-android = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-android", version.ref = "kotlinxCoroutinesAndroid" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }