diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 54333f8..e520fc5 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -20,4 +20,11 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
+# Gson
+-keepattributes Signature
+-keep class com.google.gson.reflect.TypeToken { *; }
+-keep class * extends com.google.gson.reflect.TypeToken
+-keepattributes AnnotationDefault,RuntimeVisibleAnnotations
+
+# ToDo Room
 -keep class cn.super12138.todo.logic.dao.ToDoRoom { *; }
\ No newline at end of file
diff --git a/app/src/main/kotlin/cn/super12138/todo/logic/Repository.kt b/app/src/main/kotlin/cn/super12138/todo/logic/Repository.kt
index 6a46a0f..d4c469c 100644
--- a/app/src/main/kotlin/cn/super12138/todo/logic/Repository.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/logic/Repository.kt
@@ -8,6 +8,12 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
 object Repository {
+    /**
+     * 设置数据到应用设置中
+     */
+    fun setPreference(context: Context, key: String, value: Any) =
+        SPHelper.setPreference(context, key, value)
+
     /**
      * 获取应用设置里的数据
      */
diff --git a/app/src/main/kotlin/cn/super12138/todo/logic/database/SPHelper.kt b/app/src/main/kotlin/cn/super12138/todo/logic/database/SPHelper.kt
index a1e1cf3..5c156c6 100644
--- a/app/src/main/kotlin/cn/super12138/todo/logic/database/SPHelper.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/logic/database/SPHelper.kt
@@ -15,4 +15,20 @@ object SPHelper {
             PreferenceManager.getDefaultSharedPreferences(context /* Activity context */)
         return sharedPreferences.getBoolean(name, defaultValue)
     }
+
+    fun setPreference(context: Context, name: String, value: Any) {
+        val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+        val editor = sharedPreferences.edit()
+
+        when (value) {
+            is String -> editor.putString(name, value)
+            is Boolean -> editor.putBoolean(name, value)
+            is Int -> editor.putInt(name, value)
+            is Float -> editor.putFloat(name, value)
+            is Long -> editor.putLong(name, value)
+            else -> throw IllegalArgumentException("Unsupported data type")
+        }
+
+        editor.apply()
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/kotlin/cn/super12138/todo/views/BaseActivity.kt b/app/src/main/kotlin/cn/super12138/todo/views/BaseActivity.kt
index 5bb8d90..250722f 100644
--- a/app/src/main/kotlin/cn/super12138/todo/views/BaseActivity.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/views/BaseActivity.kt
@@ -4,9 +4,17 @@ import android.os.Build
 import android.os.Bundle
 import android.view.WindowManager
 import androidx.appcompat.app.AppCompatActivity
+import cn.super12138.todo.R
+import cn.super12138.todo.ToDoApplication
+import cn.super12138.todo.logic.Repository
 
 open class BaseActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
+        val springFestivalTheme =
+            Repository.getPreferenceBoolean(ToDoApplication.context, "spring_festival_theme", false)
+        if (springFestivalTheme) {
+            setTheme(R.style.Theme_SpringFestival)
+        }
         // enableEdgeToEdge()
         super.onCreate(savedInstanceState)
         // 适配刘海屏
diff --git a/app/src/main/kotlin/cn/super12138/todo/views/about/AboutActivity.kt b/app/src/main/kotlin/cn/super12138/todo/views/about/AboutActivity.kt
index f09d7b8..36e8843 100644
--- a/app/src/main/kotlin/cn/super12138/todo/views/about/AboutActivity.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/views/about/AboutActivity.kt
@@ -4,8 +4,10 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Build
 import android.os.Bundle
+import cn.super12138.todo.ToDoApplication
 import cn.super12138.todo.constant.Constants
 import cn.super12138.todo.databinding.ActivityAboutBinding
+import cn.super12138.todo.logic.Repository
 import cn.super12138.todo.views.BaseActivity
 import showToast
 
@@ -59,6 +61,24 @@ class AboutActivity : BaseActivity() {
             when (clickCount) {
                 5 -> {
                     clickCount = 0
+                    val isSpringFestivalTheme = Repository.getPreferenceBoolean(
+                        ToDoApplication.context,
+                        "spring_festival_theme",
+                        false
+                    )
+                    if (isSpringFestivalTheme) {
+                        Repository.setPreference(
+                            ToDoApplication.context,
+                            "spring_festival_theme",
+                            false
+                        )
+                    } else {
+                        Repository.setPreference(
+                            ToDoApplication.context,
+                            "spring_festival_theme",
+                            true
+                        )
+                    }
                     "🧧".showToast()
                 }
             }
diff --git a/app/src/main/kotlin/cn/super12138/todo/views/settings/SettingsActivity.kt b/app/src/main/kotlin/cn/super12138/todo/views/settings/SettingsActivity.kt
index 2719822..f168e65 100644
--- a/app/src/main/kotlin/cn/super12138/todo/views/settings/SettingsActivity.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/views/settings/SettingsActivity.kt
@@ -5,21 +5,19 @@ import android.os.Process
 import android.view.WindowManager
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.lifecycleScope
 import androidx.preference.ListPreference
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.SwitchPreferenceCompat
 import cn.super12138.todo.R
+import cn.super12138.todo.ToDoApplication
 import cn.super12138.todo.databinding.ActivitySettingsBinding
 import cn.super12138.todo.databinding.DialogBackupBinding
 import cn.super12138.todo.databinding.DialogRestoreBinding
 import cn.super12138.todo.logic.Repository
 import cn.super12138.todo.logic.dao.ToDoRoom
 import cn.super12138.todo.views.BaseActivity
-import cn.super12138.todo.views.progress.ProgressFragmentViewModel
-import cn.super12138.todo.views.todo.ToDoFragmentViewModel
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.snackbar.Snackbar
 import com.google.gson.Gson
@@ -56,10 +54,8 @@ class SettingsActivity : BaseActivity() {
         override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
             setPreferencesFromResource(R.xml.preferences, rootKey)
             val gson = Gson()
-            val progressViewModel =
-                ViewModelProvider(requireActivity()).get(ProgressFragmentViewModel::class.java)
-            val todoViewModel =
-                ViewModelProvider(requireActivity()).get(ToDoFragmentViewModel::class.java)
+            val isDevMode =
+                Repository.getPreferenceBoolean(ToDoApplication.context, "dev_mode", false)
 
             findPreference<ListPreference>("dark_mode")?.apply {
                 setOnPreferenceChangeListener { preference, newValue ->
@@ -161,8 +157,12 @@ class SettingsActivity : BaseActivity() {
                                     restoreBinding.jsonInput.error =
                                         getString(R.string.json_data_incorrect)
                                 } catch (e: Exception) {
-                                    restoreBinding.jsonInput.error =
-                                        getString(R.string.restore_failed)
+                                    if (isDevMode) {
+                                        restoreBinding.jsonInput.error = e.toString()
+                                    } else {
+                                        restoreBinding.jsonInput.error =
+                                            getString(R.string.restore_failed)
+                                    }
                                 }
                             }
                         }
diff --git a/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoAdapter.kt b/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoAdapter.kt
index c94ada8..1d13f46 100644
--- a/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoAdapter.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoAdapter.kt
@@ -35,7 +35,7 @@ class ToDoAdapter(val todoList: MutableList<ToDo>, val viewModelStoreOwner: View
             ViewModelProvider(viewModelStoreOwner).get(ToDoFragmentViewModel::class.java)
 
         val view = LayoutInflater.from(parent.context)
-            .inflate(R.layout.todo_item, parent, false)
+            .inflate(R.layout.item_todo, parent, false)
         val holder = ViewHolder(view)
 
         holder.checkToDoBtn.setOnClickListener {
diff --git a/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoFragment.kt b/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoFragment.kt
index 9654c97..00dac8e 100644
--- a/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoFragment.kt
+++ b/app/src/main/kotlin/cn/super12138/todo/views/todo/ToDoFragment.kt
@@ -21,6 +21,7 @@ import cn.super12138.todo.logic.model.ToDo
 import cn.super12138.todo.views.progress.ProgressFragmentViewModel
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import kotlinx.coroutines.launch
+import showToast
 import java.util.UUID
 
 class ToDoFragment : Fragment() {
@@ -95,44 +96,58 @@ class ToDoFragment : Fragment() {
                         ToDoDialogBinding.todoContent.error =
                             getString(R.string.content_cannot_be_empty)
                     } else {
-                        val randomUUID = UUID.randomUUID().toString()
-                        val todoSubject = when (ToDoDialogBinding.todoSubject.checkedChipId) {
-                            R.id.subject_chinese -> getString(R.string.subject_chinese)
-                            R.id.subject_math -> getString(R.string.subject_math)
-                            R.id.subject_english -> getString(R.string.subject_english)
-                            R.id.subject_biology -> getString(R.string.subject_biology)
-                            R.id.subject_geography -> getString(R.string.subject_geography)
-                            R.id.subject_history -> getString(R.string.subject_history)
-                            R.id.subject_physics -> getString(R.string.subject_physics)
-                            R.id.subject_law -> getString(R.string.subject_law)
-                            R.id.subject_other -> getString(R.string.subject_other)
-                            else -> getString(R.string.subject_unknown)
-                        }
-
-                        // 显示RecyclerView
-                        if (todoList.size + 1 > 0) {
-                            todoViewModel.emptyTipVis.value = View.GONE
-                        }
-
-                        // 添加到RecyclerView
-                        todoList.add(
-                            ToDo(randomUUID, todoContent, todoSubject)
-                        )
-
-                        lifecycleScope.launch {
-                            Repository.insert(
-                                ToDoRoom(
-                                    randomUUID,
-                                    0,
-                                    todoSubject,
-                                    todoContent
+                        if (todoContent == "/DEV MODE") {
+                            if (Repository.getPreferenceBoolean(
+                                    ToDoApplication.context,
+                                    "dev_mode",
+                                    true
                                 )
+                            ) {
+                                Repository.setPreference(ToDoApplication.context, "dev_mode", false)
+                            } else {
+                                Repository.setPreference(ToDoApplication.context, "dev_mode", true)
+                                "Dev Mode".showToast()
+                            }
+                            dialog.dismiss()
+                        } else {
+                            val randomUUID = UUID.randomUUID().toString()
+                            val todoSubject = when (ToDoDialogBinding.todoSubject.checkedChipId) {
+                                R.id.subject_chinese -> getString(R.string.subject_chinese)
+                                R.id.subject_math -> getString(R.string.subject_math)
+                                R.id.subject_english -> getString(R.string.subject_english)
+                                R.id.subject_biology -> getString(R.string.subject_biology)
+                                R.id.subject_geography -> getString(R.string.subject_geography)
+                                R.id.subject_history -> getString(R.string.subject_history)
+                                R.id.subject_physics -> getString(R.string.subject_physics)
+                                R.id.subject_law -> getString(R.string.subject_law)
+                                R.id.subject_other -> getString(R.string.subject_other)
+                                else -> getString(R.string.subject_unknown)
+                            }
+
+                            // 显示RecyclerView
+                            if (todoList.size + 1 > 0) {
+                                todoViewModel.emptyTipVis.value = View.GONE
+                            }
+
+                            // 添加到RecyclerView
+                            todoList.add(
+                                ToDo(randomUUID, todoContent, todoSubject)
                             )
-                            progressViewModel.updateProgress()
-                        }
 
-                        binding.todoList.adapter?.notifyItemInserted(todoList.size + 1)
-                        dialog.dismiss()
+                            lifecycleScope.launch {
+                                Repository.insert(
+                                    ToDoRoom(
+                                        randomUUID,
+                                        0,
+                                        todoSubject,
+                                        todoContent
+                                    )
+                                )
+                                progressViewModel.updateProgress()
+                                binding.todoList.adapter?.notifyItemInserted(todoList.size + 1)
+                                dialog.dismiss()
+                            }
+                        }
                     }
                 }
             }
diff --git a/app/src/main/res/layout/todo_item.xml b/app/src/main/res/layout/item_todo.xml
similarity index 100%
rename from app/src/main/res/layout/todo_item.xml
rename to app/src/main/res/layout/item_todo.xml
diff --git a/app/src/main/res/values-night/colors.xml b/app/src/main/res/values-night/colors.xml
index ceb654e..3e2b42c 100644
--- a/app/src/main/res/values-night/colors.xml
+++ b/app/src/main/res/values-night/colors.xml
@@ -140,4 +140,147 @@
     <color name="md_theme_surfaceContainer_highContrast">#1D2024</color>
     <color name="md_theme_surfaceContainerHigh_highContrast">#272A2F</color>
     <color name="md_theme_surfaceContainerHighest_highContrast">#32353A</color>
+
+    <!-- Red -->
+    <color name="md_theme_red_primary">#FFB4A8</color>
+    <color name="md_theme_red_onPrimary">#690100</color>
+    <color name="md_theme_red_primaryContainer">#940100</color>
+    <color name="md_theme_red_onPrimaryContainer">#FFD8D2</color>
+    <color name="md_theme_red_secondary">#FFB4A8</color>
+    <color name="md_theme_red_onSecondary">#630F08</color>
+    <color name="md_theme_red_secondaryContainer">#751D13</color>
+    <color name="md_theme_red_onSecondaryContainer">#FFC3B9</color>
+    <color name="md_theme_red_tertiary">#F1BE6F</color>
+    <color name="md_theme_red_onTertiary">#442C00</color>
+    <color name="md_theme_red_tertiaryContainer">#614000</color>
+    <color name="md_theme_red_onTertiaryContainer">#FFDAA6</color>
+    <color name="md_theme_red_error">#FFB4AB</color>
+    <color name="md_theme_red_onError">#690005</color>
+    <color name="md_theme_red_errorContainer">#93000A</color>
+    <color name="md_theme_red_onErrorContainer">#FFDAD6</color>
+    <color name="md_theme_red_background">#1E0F0D</color>
+    <color name="md_theme_red_onBackground">#FADCD7</color>
+    <color name="md_theme_red_surface">#1E0F0D</color>
+    <color name="md_theme_red_onSurface">#FADCD7</color>
+    <color name="md_theme_red_surfaceVariant">#5C403B</color>
+    <color name="md_theme_red_onSurfaceVariant">#E5BEB7</color>
+    <color name="md_theme_red_outline">#AC8983</color>
+    <color name="md_theme_red_outlineVariant">#5C403B</color>
+    <color name="md_theme_red_scrim">#000000</color>
+    <color name="md_theme_red_inverseSurface">#FADCD7</color>
+    <color name="md_theme_red_inverseOnSurface">#3E2C29</color>
+    <color name="md_theme_red_inversePrimary">#BB190E</color>
+    <color name="md_theme_red_primaryFixed">#FFDAD4</color>
+    <color name="md_theme_red_onPrimaryFixed">#410000</color>
+    <color name="md_theme_red_primaryFixedDim">#FFB4A8</color>
+    <color name="md_theme_red_onPrimaryFixedVariant">#930100</color>
+    <color name="md_theme_red_secondaryFixed">#FFDAD4</color>
+    <color name="md_theme_red_onSecondaryFixed">#410000</color>
+    <color name="md_theme_red_secondaryFixedDim">#FFB4A8</color>
+    <color name="md_theme_red_onSecondaryFixedVariant">#82261B</color>
+    <color name="md_theme_red_tertiaryFixed">#FFDDAF</color>
+    <color name="md_theme_red_onTertiaryFixed">#281800</color>
+    <color name="md_theme_red_tertiaryFixedDim">#F1BE6F</color>
+    <color name="md_theme_red_onTertiaryFixedVariant">#614000</color>
+    <color name="md_theme_red_surfaceDim">#1E0F0D</color>
+    <color name="md_theme_red_surfaceBright">#483531</color>
+    <color name="md_theme_red_surfaceContainerLowest">#190A08</color>
+    <color name="md_theme_red_surfaceContainerLow">#281715</color>
+    <color name="md_theme_red_surfaceContainer">#2C1B19</color>
+    <color name="md_theme_red_surfaceContainerHigh">#372623</color>
+    <color name="md_theme_red_surfaceContainerHighest">#43302D</color>
+    <color name="md_theme_red_primary_mediumContrast">#FFBAAF</color>
+    <color name="md_theme_red_onPrimary_mediumContrast">#370000</color>
+    <color name="md_theme_red_primaryContainer_mediumContrast">#FF5540</color>
+    <color name="md_theme_red_onPrimaryContainer_mediumContrast">#000000</color>
+    <color name="md_theme_red_secondary_mediumContrast">#FFBAAF</color>
+    <color name="md_theme_red_onSecondary_mediumContrast">#370000</color>
+    <color name="md_theme_red_secondaryContainer_mediumContrast">#E26E5D</color>
+    <color name="md_theme_red_onSecondaryContainer_mediumContrast">#000000</color>
+    <color name="md_theme_red_tertiary_mediumContrast">#F6C273</color>
+    <color name="md_theme_red_onTertiary_mediumContrast">#211400</color>
+    <color name="md_theme_red_tertiaryContainer_mediumContrast">#B6893F</color>
+    <color name="md_theme_red_onTertiaryContainer_mediumContrast">#000000</color>
+    <color name="md_theme_red_error_mediumContrast">#FFBAB1</color>
+    <color name="md_theme_red_onError_mediumContrast">#370001</color>
+    <color name="md_theme_red_errorContainer_mediumContrast">#FF5449</color>
+    <color name="md_theme_red_onErrorContainer_mediumContrast">#000000</color>
+    <color name="md_theme_red_background_mediumContrast">#1E0F0D</color>
+    <color name="md_theme_red_onBackground_mediumContrast">#FADCD7</color>
+    <color name="md_theme_red_surface_mediumContrast">#1E0F0D</color>
+    <color name="md_theme_red_onSurface_mediumContrast">#FFF9F8</color>
+    <color name="md_theme_red_surfaceVariant_mediumContrast">#5C403B</color>
+    <color name="md_theme_red_onSurfaceVariant_mediumContrast">#E9C2BB</color>
+    <color name="md_theme_red_outline_mediumContrast">#BF9A95</color>
+    <color name="md_theme_red_outlineVariant_mediumContrast">#9D7B76</color>
+    <color name="md_theme_red_scrim_mediumContrast">#000000</color>
+    <color name="md_theme_red_inverseSurface_mediumContrast">#FADCD7</color>
+    <color name="md_theme_red_inverseOnSurface_mediumContrast">#372623</color>
+    <color name="md_theme_red_inversePrimary_mediumContrast">#950100</color>
+    <color name="md_theme_red_primaryFixed_mediumContrast">#FFDAD4</color>
+    <color name="md_theme_red_onPrimaryFixed_mediumContrast">#2D0000</color>
+    <color name="md_theme_red_primaryFixedDim_mediumContrast">#FFB4A8</color>
+    <color name="md_theme_red_onPrimaryFixedVariant_mediumContrast">#740100</color>
+    <color name="md_theme_red_secondaryFixed_mediumContrast">#FFDAD4</color>
+    <color name="md_theme_red_onSecondaryFixed_mediumContrast">#2D0000</color>
+    <color name="md_theme_red_secondaryFixedDim_mediumContrast">#FFB4A8</color>
+    <color name="md_theme_red_onSecondaryFixedVariant_mediumContrast">#6B150D</color>
+    <color name="md_theme_red_tertiaryFixed_mediumContrast">#FFDDAF</color>
+    <color name="md_theme_red_onTertiaryFixed_mediumContrast">#1B0F00</color>
+    <color name="md_theme_red_tertiaryFixedDim_mediumContrast">#F1BE6F</color>
+    <color name="md_theme_red_onTertiaryFixedVariant_mediumContrast">#4B3100</color>
+    <color name="md_theme_red_surfaceDim_mediumContrast">#1E0F0D</color>
+    <color name="md_theme_red_surfaceBright_mediumContrast">#483531</color>
+    <color name="md_theme_red_surfaceContainerLowest_mediumContrast">#190A08</color>
+    <color name="md_theme_red_surfaceContainerLow_mediumContrast">#281715</color>
+    <color name="md_theme_red_surfaceContainer_mediumContrast">#2C1B19</color>
+    <color name="md_theme_red_surfaceContainerHigh_mediumContrast">#372623</color>
+    <color name="md_theme_red_surfaceContainerHighest_mediumContrast">#43302D</color>
+    <color name="md_theme_red_primary_highContrast">#FFF9F8</color>
+    <color name="md_theme_red_onPrimary_highContrast">#000000</color>
+    <color name="md_theme_red_primaryContainer_highContrast">#FFBAAF</color>
+    <color name="md_theme_red_onPrimaryContainer_highContrast">#000000</color>
+    <color name="md_theme_red_secondary_highContrast">#FFF9F8</color>
+    <color name="md_theme_red_onSecondary_highContrast">#000000</color>
+    <color name="md_theme_red_secondaryContainer_highContrast">#FFBAAF</color>
+    <color name="md_theme_red_onSecondaryContainer_highContrast">#000000</color>
+    <color name="md_theme_red_tertiary_highContrast">#FFFAF7</color>
+    <color name="md_theme_red_onTertiary_highContrast">#000000</color>
+    <color name="md_theme_red_tertiaryContainer_highContrast">#F6C273</color>
+    <color name="md_theme_red_onTertiaryContainer_highContrast">#000000</color>
+    <color name="md_theme_red_error_highContrast">#FFF9F9</color>
+    <color name="md_theme_red_onError_highContrast">#000000</color>
+    <color name="md_theme_red_errorContainer_highContrast">#FFBAB1</color>
+    <color name="md_theme_red_onErrorContainer_highContrast">#000000</color>
+    <color name="md_theme_red_background_highContrast">#1E0F0D</color>
+    <color name="md_theme_red_onBackground_highContrast">#FADCD7</color>
+    <color name="md_theme_red_surface_highContrast">#1E0F0D</color>
+    <color name="md_theme_red_onSurface_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_surfaceVariant_highContrast">#5C403B</color>
+    <color name="md_theme_red_onSurfaceVariant_highContrast">#FFF9F8</color>
+    <color name="md_theme_red_outline_highContrast">#E9C2BB</color>
+    <color name="md_theme_red_outlineVariant_highContrast">#E9C2BB</color>
+    <color name="md_theme_red_scrim_highContrast">#000000</color>
+    <color name="md_theme_red_inverseSurface_highContrast">#FADCD7</color>
+    <color name="md_theme_red_inverseOnSurface_highContrast">#000000</color>
+    <color name="md_theme_red_inversePrimary_highContrast">#5C0000</color>
+    <color name="md_theme_red_primaryFixed_highContrast">#FFE0DB</color>
+    <color name="md_theme_red_onPrimaryFixed_highContrast">#000000</color>
+    <color name="md_theme_red_primaryFixedDim_highContrast">#FFBAAF</color>
+    <color name="md_theme_red_onPrimaryFixedVariant_highContrast">#370000</color>
+    <color name="md_theme_red_secondaryFixed_highContrast">#FFE0DB</color>
+    <color name="md_theme_red_onSecondaryFixed_highContrast">#000000</color>
+    <color name="md_theme_red_secondaryFixedDim_highContrast">#FFBAAF</color>
+    <color name="md_theme_red_onSecondaryFixedVariant_highContrast">#370000</color>
+    <color name="md_theme_red_tertiaryFixed_highContrast">#FFE3BD</color>
+    <color name="md_theme_red_onTertiaryFixed_highContrast">#000000</color>
+    <color name="md_theme_red_tertiaryFixedDim_highContrast">#F6C273</color>
+    <color name="md_theme_red_onTertiaryFixedVariant_highContrast">#211400</color>
+    <color name="md_theme_red_surfaceDim_highContrast">#1E0F0D</color>
+    <color name="md_theme_red_surfaceBright_highContrast">#483531</color>
+    <color name="md_theme_red_surfaceContainerLowest_highContrast">#190A08</color>
+    <color name="md_theme_red_surfaceContainerLow_highContrast">#281715</color>
+    <color name="md_theme_red_surfaceContainer_highContrast">#2C1B19</color>
+    <color name="md_theme_red_surfaceContainerHigh_highContrast">#372623</color>
+    <color name="md_theme_red_surfaceContainerHighest_highContrast">#43302D</color>
 </resources>
diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml
index 67efe07..fe49b5d 100644
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@@ -51,4 +51,56 @@
         <item name="preferenceTheme">@style/AppPreferenceThemeOverlay</item>
         <item name="alertDialogTheme">@style/ToDo.M3AlertDialog</item>
     </style>
+
+    <style name="Base.Theme.SpringFestival" parent="Theme.Material3.Dark.NoActionBar">
+        <item name="colorPrimary">@color/md_theme_red_primary</item>
+        <item name="colorOnPrimary">@color/md_theme_red_onPrimary</item>
+        <item name="colorPrimaryContainer">@color/md_theme_red_primaryContainer</item>
+        <item name="colorOnPrimaryContainer">@color/md_theme_red_onPrimaryContainer</item>
+        <item name="colorSecondary">@color/md_theme_red_secondary</item>
+        <item name="colorOnSecondary">@color/md_theme_red_onSecondary</item>
+        <item name="colorSecondaryContainer">@color/md_theme_red_secondaryContainer</item>
+        <item name="colorOnSecondaryContainer">@color/md_theme_red_onSecondaryContainer</item>
+        <item name="colorTertiary">@color/md_theme_red_tertiary</item>
+        <item name="colorOnTertiary">@color/md_theme_red_onTertiary</item>
+        <item name="colorTertiaryContainer">@color/md_theme_red_tertiaryContainer</item>
+        <item name="colorOnTertiaryContainer">@color/md_theme_red_onTertiaryContainer</item>
+        <item name="colorError">@color/md_theme_red_error</item>
+        <item name="colorOnError">@color/md_theme_red_onError</item>
+        <item name="colorErrorContainer">@color/md_theme_red_errorContainer</item>
+        <item name="colorOnErrorContainer">@color/md_theme_red_onErrorContainer</item>
+        <item name="android:colorBackground">@color/md_theme_red_background</item>
+        <item name="colorOnBackground">@color/md_theme_red_onBackground</item>
+        <item name="colorSurface">@color/md_theme_red_surface</item>
+        <item name="colorOnSurface">@color/md_theme_red_onSurface</item>
+        <item name="colorSurfaceVariant">@color/md_theme_red_surfaceVariant</item>
+        <item name="colorOnSurfaceVariant">@color/md_theme_red_onSurfaceVariant</item>
+        <item name="colorOutline">@color/md_theme_red_outline</item>
+        <item name="colorOutlineVariant">@color/md_theme_red_outlineVariant</item>
+        <item name="colorSurfaceInverse">@color/md_theme_red_inverseSurface</item>
+        <item name="colorOnSurfaceInverse">@color/md_theme_red_inverseOnSurface</item>
+        <item name="colorPrimaryInverse">@color/md_theme_red_inversePrimary</item>
+        <item name="colorPrimaryFixed">@color/md_theme_red_primaryFixed</item>
+        <item name="colorOnPrimaryFixed">@color/md_theme_red_onPrimaryFixed</item>
+        <item name="colorPrimaryFixedDim">@color/md_theme_red_primaryFixedDim</item>
+        <item name="colorOnPrimaryFixedVariant">@color/md_theme_red_onPrimaryFixedVariant</item>
+        <item name="colorSecondaryFixed">@color/md_theme_red_secondaryFixed</item>
+        <item name="colorOnSecondaryFixed">@color/md_theme_red_onSecondaryFixed</item>
+        <item name="colorSecondaryFixedDim">@color/md_theme_red_secondaryFixedDim</item>
+        <item name="colorOnSecondaryFixedVariant">@color/md_theme_red_onSecondaryFixedVariant</item>
+        <item name="colorTertiaryFixed">@color/md_theme_red_tertiaryFixed</item>
+        <item name="colorOnTertiaryFixed">@color/md_theme_red_onTertiaryFixed</item>
+        <item name="colorTertiaryFixedDim">@color/md_theme_red_tertiaryFixedDim</item>
+        <item name="colorOnTertiaryFixedVariant">@color/md_theme_red_onTertiaryFixedVariant</item>
+        <item name="colorSurfaceDim">@color/md_theme_red_surfaceDim</item>
+        <item name="colorSurfaceBright">@color/md_theme_red_surfaceBright</item>
+        <item name="colorSurfaceContainerLowest">@color/md_theme_red_surfaceContainerLowest</item>
+        <item name="colorSurfaceContainerLow">@color/md_theme_red_surfaceContainerLow</item>
+        <item name="colorSurfaceContainer">@color/md_theme_red_surfaceContainer</item>
+        <item name="colorSurfaceContainerHigh">@color/md_theme_red_surfaceContainerHigh</item>
+        <item name="colorSurfaceContainerHighest">@color/md_theme_red_surfaceContainerHighest</item>
+
+        <item name="preferenceTheme">@style/AppPreferenceThemeOverlay</item>
+        <item name="alertDialogTheme">@style/ToDo.M3AlertDialog</item>
+    </style>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-v23/themes.xml b/app/src/main/res/values-v23/themes.xml
index 7be0b54..5f46963 100644
--- a/app/src/main/res/values-v23/themes.xml
+++ b/app/src/main/res/values-v23/themes.xml
@@ -6,4 +6,10 @@
         <item name="android:statusBarColor">@android:color/transparent</item>
         <item name="android:windowLightStatusBar">?attr/isLightTheme</item>
     </style>
+    <style name="Theme.SpringFestival" parent="Base.Theme.SpringFestival">
+        <!-- Transparent system bars for edge-to-edge. -->
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+        <item name="android:windowLightStatusBar">?attr/isLightTheme</item>
+    </style>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 54fe9d3..7f9de8c 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -144,4 +144,146 @@
     <color name="md_theme_surfaceContainer_highContrast">#ECEEF4</color>
     <color name="md_theme_surfaceContainerHigh_highContrast">#E6E8EE</color>
     <color name="md_theme_surfaceContainerHighest_highContrast">#E1E2E8</color>
+    <!-- Red -->
+    <color name="md_theme_red_primary">#7E0100</color>
+    <color name="md_theme_red_onPrimary">#FFFFFF</color>
+    <color name="md_theme_red_primaryContainer">#BB1A0E</color>
+    <color name="md_theme_red_onPrimaryContainer">#FFFFFF</color>
+    <color name="md_theme_red_secondary">#A23E30</color>
+    <color name="md_theme_red_onSecondary">#FFFFFF</color>
+    <color name="md_theme_red_secondaryContainer">#FF9281</color>
+    <color name="md_theme_red_onSecondaryContainer">#520201</color>
+    <color name="md_theme_red_tertiary">#533700</color>
+    <color name="md_theme_red_onTertiary">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryContainer">#7E5811</color>
+    <color name="md_theme_red_onTertiaryContainer">#FFFFFF</color>
+    <color name="md_theme_red_error">#BA1A1A</color>
+    <color name="md_theme_red_onError">#FFFFFF</color>
+    <color name="md_theme_red_errorContainer">#FFDAD6</color>
+    <color name="md_theme_red_onErrorContainer">#410002</color>
+    <color name="md_theme_red_background">#FFF8F6</color>
+    <color name="md_theme_red_onBackground">#281715</color>
+    <color name="md_theme_red_surface">#FFF8F6</color>
+    <color name="md_theme_red_onSurface">#281715</color>
+    <color name="md_theme_red_surfaceVariant">#FFDAD4</color>
+    <color name="md_theme_red_onSurfaceVariant">#5C403B</color>
+    <color name="md_theme_red_outline">#906F6A</color>
+    <color name="md_theme_red_outlineVariant">#E5BEB7</color>
+    <color name="md_theme_red_scrim">#000000</color>
+    <color name="md_theme_red_inverseSurface">#3E2C29</color>
+    <color name="md_theme_red_inverseOnSurface">#FFEDEA</color>
+    <color name="md_theme_red_inversePrimary">#FFB4A8</color>
+    <color name="md_theme_red_primaryFixed">#FFDAD4</color>
+    <color name="md_theme_red_onPrimaryFixed">#410000</color>
+    <color name="md_theme_red_primaryFixedDim">#FFB4A8</color>
+    <color name="md_theme_red_onPrimaryFixedVariant">#930100</color>
+    <color name="md_theme_red_secondaryFixed">#FFDAD4</color>
+    <color name="md_theme_red_onSecondaryFixed">#410000</color>
+    <color name="md_theme_red_secondaryFixedDim">#FFB4A8</color>
+    <color name="md_theme_red_onSecondaryFixedVariant">#82261B</color>
+    <color name="md_theme_red_tertiaryFixed">#FFDDAF</color>
+    <color name="md_theme_red_onTertiaryFixed">#281800</color>
+    <color name="md_theme_red_tertiaryFixedDim">#F1BE6F</color>
+    <color name="md_theme_red_onTertiaryFixedVariant">#614000</color>
+    <color name="md_theme_red_surfaceDim">#F1D3CE</color>
+    <color name="md_theme_red_surfaceBright">#FFF8F6</color>
+    <color name="md_theme_red_surfaceContainerLowest">#FFFFFF</color>
+    <color name="md_theme_red_surfaceContainerLow">#FFF0EE</color>
+    <color name="md_theme_red_surfaceContainer">#FFE9E6</color>
+    <color name="md_theme_red_surfaceContainerHigh">#FFE2DD</color>
+    <color name="md_theme_red_surfaceContainerHighest">#FADCD7</color>
+    <color name="md_theme_red_primary_mediumContrast">#7E0100</color>
+    <color name="md_theme_red_onPrimary_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_primaryContainer_mediumContrast">#BB1A0E</color>
+    <color name="md_theme_red_onPrimaryContainer_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondary_mediumContrast">#7D2318</color>
+    <color name="md_theme_red_onSecondary_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryContainer_mediumContrast">#BF5344</color>
+    <color name="md_theme_red_onSecondaryContainer_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiary_mediumContrast">#533700</color>
+    <color name="md_theme_red_onTertiary_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryContainer_mediumContrast">#7E5811</color>
+    <color name="md_theme_red_onTertiaryContainer_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_error_mediumContrast">#8C0009</color>
+    <color name="md_theme_red_onError_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_errorContainer_mediumContrast">#DA342E</color>
+    <color name="md_theme_red_onErrorContainer_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_background_mediumContrast">#FFF8F6</color>
+    <color name="md_theme_red_onBackground_mediumContrast">#281715</color>
+    <color name="md_theme_red_surface_mediumContrast">#FFF8F6</color>
+    <color name="md_theme_red_onSurface_mediumContrast">#281715</color>
+    <color name="md_theme_red_surfaceVariant_mediumContrast">#FFDAD4</color>
+    <color name="md_theme_red_onSurfaceVariant_mediumContrast">#573C38</color>
+    <color name="md_theme_red_outline_mediumContrast">#765853</color>
+    <color name="md_theme_red_outlineVariant_mediumContrast">#94736E</color>
+    <color name="md_theme_red_scrim_mediumContrast">#000000</color>
+    <color name="md_theme_red_inverseSurface_mediumContrast">#3E2C29</color>
+    <color name="md_theme_red_inverseOnSurface_mediumContrast">#FFEDEA</color>
+    <color name="md_theme_red_inversePrimary_mediumContrast">#FFB4A8</color>
+    <color name="md_theme_red_primaryFixed_mediumContrast">#DB3323</color>
+    <color name="md_theme_red_onPrimaryFixed_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_primaryFixedDim_mediumContrast">#B7160B</color>
+    <color name="md_theme_red_onPrimaryFixedVariant_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryFixed_mediumContrast">#BF5344</color>
+    <color name="md_theme_red_onSecondaryFixed_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryFixedDim_mediumContrast">#9E3B2E</color>
+    <color name="md_theme_red_onSecondaryFixedVariant_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryFixed_mediumContrast">#966D26</color>
+    <color name="md_theme_red_onTertiaryFixed_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryFixedDim_mediumContrast">#7B550D</color>
+    <color name="md_theme_red_onTertiaryFixedVariant_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_surfaceDim_mediumContrast">#F1D3CE</color>
+    <color name="md_theme_red_surfaceBright_mediumContrast">#FFF8F6</color>
+    <color name="md_theme_red_surfaceContainerLowest_mediumContrast">#FFFFFF</color>
+    <color name="md_theme_red_surfaceContainerLow_mediumContrast">#FFF0EE</color>
+    <color name="md_theme_red_surfaceContainer_mediumContrast">#FFE9E6</color>
+    <color name="md_theme_red_surfaceContainerHigh_mediumContrast">#FFE2DD</color>
+    <color name="md_theme_red_surfaceContainerHighest_mediumContrast">#FADCD7</color>
+    <color name="md_theme_red_primary_highContrast">#4E0000</color>
+    <color name="md_theme_red_onPrimary_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_primaryContainer_highContrast">#8C0100</color>
+    <color name="md_theme_red_onPrimaryContainer_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondary_highContrast">#4E0000</color>
+    <color name="md_theme_red_onSecondary_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryContainer_highContrast">#7D2318</color>
+    <color name="md_theme_red_onSecondaryContainer_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiary_highContrast">#311F00</color>
+    <color name="md_theme_red_onTertiary_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryContainer_highContrast">#5C3D00</color>
+    <color name="md_theme_red_onTertiaryContainer_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_error_highContrast">#4E0002</color>
+    <color name="md_theme_red_onError_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_errorContainer_highContrast">#8C0009</color>
+    <color name="md_theme_red_onErrorContainer_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_background_highContrast">#FFF8F6</color>
+    <color name="md_theme_red_onBackground_highContrast">#281715</color>
+    <color name="md_theme_red_surface_highContrast">#FFF8F6</color>
+    <color name="md_theme_red_onSurface_highContrast">#000000</color>
+    <color name="md_theme_red_surfaceVariant_highContrast">#FFDAD4</color>
+    <color name="md_theme_red_onSurfaceVariant_highContrast">#351E1A</color>
+    <color name="md_theme_red_outline_highContrast">#573C38</color>
+    <color name="md_theme_red_outlineVariant_highContrast">#573C38</color>
+    <color name="md_theme_red_scrim_highContrast">#000000</color>
+    <color name="md_theme_red_inverseSurface_highContrast">#3E2C29</color>
+    <color name="md_theme_red_inverseOnSurface_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_inversePrimary_highContrast">#FFE7E3</color>
+    <color name="md_theme_red_primaryFixed_highContrast">#8C0100</color>
+    <color name="md_theme_red_onPrimaryFixed_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_primaryFixedDim_highContrast">#620100</color>
+    <color name="md_theme_red_onPrimaryFixedVariant_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryFixed_highContrast">#7D2318</color>
+    <color name="md_theme_red_onSecondaryFixed_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_secondaryFixedDim_highContrast">#5D0B05</color>
+    <color name="md_theme_red_onSecondaryFixedVariant_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryFixed_highContrast">#5C3D00</color>
+    <color name="md_theme_red_onTertiaryFixed_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_tertiaryFixedDim_highContrast">#3F2800</color>
+    <color name="md_theme_red_onTertiaryFixedVariant_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_surfaceDim_highContrast">#F1D3CE</color>
+    <color name="md_theme_red_surfaceBright_highContrast">#FFF8F6</color>
+    <color name="md_theme_red_surfaceContainerLowest_highContrast">#FFFFFF</color>
+    <color name="md_theme_red_surfaceContainerLow_highContrast">#FFF0EE</color>
+    <color name="md_theme_red_surfaceContainer_highContrast">#FFE9E6</color>
+    <color name="md_theme_red_surfaceContainerHigh_highContrast">#FFE2DD</color>
+    <color name="md_theme_red_surfaceContainerHighest_highContrast">#FADCD7</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index aab0fe2..aab9d7d 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -68,4 +68,56 @@
         <item name="android:colorBackground">?attr/colorSurfaceContainerHigh</item>
         <item name="android:layout">@layout/m3_alert_dialog</item>
     </style>
+
+    <style name="Base.Theme.SpringFestival" parent="Theme.Material3.Light.NoActionBar">
+        <item name="colorPrimary">@color/md_theme_red_primary</item>
+        <item name="colorOnPrimary">@color/md_theme_red_onPrimary</item>
+        <item name="colorPrimaryContainer">@color/md_theme_red_primaryContainer</item>
+        <item name="colorOnPrimaryContainer">@color/md_theme_red_onPrimaryContainer</item>
+        <item name="colorSecondary">@color/md_theme_red_secondary</item>
+        <item name="colorOnSecondary">@color/md_theme_red_onSecondary</item>
+        <item name="colorSecondaryContainer">@color/md_theme_red_secondaryContainer</item>
+        <item name="colorOnSecondaryContainer">@color/md_theme_red_onSecondaryContainer</item>
+        <item name="colorTertiary">@color/md_theme_red_tertiary</item>
+        <item name="colorOnTertiary">@color/md_theme_red_onTertiary</item>
+        <item name="colorTertiaryContainer">@color/md_theme_red_tertiaryContainer</item>
+        <item name="colorOnTertiaryContainer">@color/md_theme_red_onTertiaryContainer</item>
+        <item name="colorError">@color/md_theme_red_error</item>
+        <item name="colorOnError">@color/md_theme_red_onError</item>
+        <item name="colorErrorContainer">@color/md_theme_red_errorContainer</item>
+        <item name="colorOnErrorContainer">@color/md_theme_red_onErrorContainer</item>
+        <item name="android:colorBackground">@color/md_theme_red_background</item>
+        <item name="colorOnBackground">@color/md_theme_red_onBackground</item>
+        <item name="colorSurface">@color/md_theme_red_surface</item>
+        <item name="colorOnSurface">@color/md_theme_red_onSurface</item>
+        <item name="colorSurfaceVariant">@color/md_theme_red_surfaceVariant</item>
+        <item name="colorOnSurfaceVariant">@color/md_theme_red_onSurfaceVariant</item>
+        <item name="colorOutline">@color/md_theme_red_outline</item>
+        <item name="colorOutlineVariant">@color/md_theme_red_outlineVariant</item>
+        <item name="colorSurfaceInverse">@color/md_theme_red_inverseSurface</item>
+        <item name="colorOnSurfaceInverse">@color/md_theme_red_inverseOnSurface</item>
+        <item name="colorPrimaryInverse">@color/md_theme_red_inversePrimary</item>
+        <item name="colorPrimaryFixed">@color/md_theme_red_primaryFixed</item>
+        <item name="colorOnPrimaryFixed">@color/md_theme_red_onPrimaryFixed</item>
+        <item name="colorPrimaryFixedDim">@color/md_theme_red_primaryFixedDim</item>
+        <item name="colorOnPrimaryFixedVariant">@color/md_theme_red_onPrimaryFixedVariant</item>
+        <item name="colorSecondaryFixed">@color/md_theme_red_secondaryFixed</item>
+        <item name="colorOnSecondaryFixed">@color/md_theme_red_onSecondaryFixed</item>
+        <item name="colorSecondaryFixedDim">@color/md_theme_red_secondaryFixedDim</item>
+        <item name="colorOnSecondaryFixedVariant">@color/md_theme_red_onSecondaryFixedVariant</item>
+        <item name="colorTertiaryFixed">@color/md_theme_red_tertiaryFixed</item>
+        <item name="colorOnTertiaryFixed">@color/md_theme_red_onTertiaryFixed</item>
+        <item name="colorTertiaryFixedDim">@color/md_theme_red_tertiaryFixedDim</item>
+        <item name="colorOnTertiaryFixedVariant">@color/md_theme_red_onTertiaryFixedVariant</item>
+        <item name="colorSurfaceDim">@color/md_theme_red_surfaceDim</item>
+        <item name="colorSurfaceBright">@color/md_theme_red_surfaceBright</item>
+        <item name="colorSurfaceContainerLowest">@color/md_theme_red_surfaceContainerLowest</item>
+        <item name="colorSurfaceContainerLow">@color/md_theme_red_surfaceContainerLow</item>
+        <item name="colorSurfaceContainer">@color/md_theme_red_surfaceContainer</item>
+        <item name="colorSurfaceContainerHigh">@color/md_theme_red_surfaceContainerHigh</item>
+        <item name="colorSurfaceContainerHighest">@color/md_theme_red_surfaceContainerHighest</item>
+
+        <item name="preferenceTheme">@style/AppPreferenceThemeOverlay</item>
+        <item name="alertDialogTheme">@style/ToDo.M3AlertDialog</item>
+    </style>
 </resources>
\ No newline at end of file