diff --git a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/AboutActivity.kt b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/AboutActivity.kt
index 385cd75..8447b81 100644
--- a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/AboutActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/AboutActivity.kt
@@ -37,7 +37,7 @@ class AboutActivity : AppCompatActivity() {
     }
 
     private fun setupRateUs() {
-        if (preferences().isFirstRun) {
+        if (preferences.isFirstRun) {
             about_rate_us.visibility = View.GONE
         }
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/MainActivity.kt
index 6390614..45324fd 100644
--- a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/MainActivity.kt
@@ -37,6 +37,6 @@ class MainActivity : AppCompatActivity() {
 
     override fun onDestroy() {
         super.onDestroy()
-        preferences().isFirstRun = false
+        preferences.isFirstRun = false
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/SettingsActivity.kt b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/SettingsActivity.kt
index 3377f0a..d4aed08 100644
--- a/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/SettingsActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/applauncher/activities/SettingsActivity.kt
@@ -1,13 +1,32 @@
 package com.simplemobiletools.applauncher.activities
 
 import android.os.Bundle
+import android.support.v4.app.TaskStackBuilder
 import android.support.v7.app.AppCompatActivity
 import com.simplemobiletools.applauncher.R
+import com.simplemobiletools.applauncher.extensions.isDarkTheme
+import com.simplemobiletools.applauncher.extensions.preferences
+import kotlinx.android.synthetic.main.activity_settings.*
 
 class SettingsActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_settings)
+        setupDarkTheme()
+    }
+
+    private fun setupDarkTheme() {
+        settings_dark_theme.isChecked = preferences.isDarkTheme
+
+        settings_dark_theme_holder.setOnClickListener {
+            settings_dark_theme.isChecked = !settings_dark_theme.isChecked
+            preferences.isDarkTheme = settings_dark_theme.isChecked
+            restartActivity()
+        }
+    }
+
+    private fun restartActivity() {
+        TaskStackBuilder.create(applicationContext).addNextIntentWithParentStack(intent).startActivities()
     }
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/applauncher/extensions/preferences.kt b/app/src/main/kotlin/com/simplemobiletools/applauncher/extensions/preferences.kt
index 2ac7e22..58c1e7f 100644
--- a/app/src/main/kotlin/com/simplemobiletools/applauncher/extensions/preferences.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/applauncher/extensions/preferences.kt
@@ -5,9 +5,11 @@ import android.content.SharedPreferences
 
 val PREFS_KEY = "App Launcher"
 val IS_FIRST_RUN = "is_first_run"
+val IS_DARK_THEME = "is_dark_theme"
 
 private val defaultInit: Any.() -> Unit = {}
 
+val Context.preferences: SharedPreferences get() = preferences()
 fun Context.preferences(init: SharedPreferences.() -> Unit = defaultInit): SharedPreferences {
     val defaultPreferences = getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE)
     defaultPreferences.init()
@@ -21,3 +23,11 @@ var SharedPreferences.isFirstRun: Boolean
     get() {
         return getBoolean(IS_FIRST_RUN, true)
     }
+
+var SharedPreferences.isDarkTheme: Boolean
+    set(isDarkTheme: Boolean) {
+        edit().putBoolean(IS_DARK_THEME, isDarkTheme).apply()
+    }
+    get() {
+        return getBoolean(IS_DARK_THEME, false)
+    }