diff --git a/build.gradle b/build.gradle
index 29cb3840e0764a8187139146b828ae53473c5476..87e352475a89f26942f72cb92b2adffcc161fd08 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,12 +40,12 @@ dependencies {
 }
 
 android {
-	compileSdkVersion 19
-	buildToolsVersion "19.1"
+	compileSdkVersion 21
+	buildToolsVersion "21.1.2"
 
 	defaultConfig {
 		minSdkVersion 14
-		targetSdkVersion 19
+		targetSdkVersion 21
 		versionCode 41
 		versionName "0.10"
 	}
diff --git a/src/main/res/values-v21/themes.xml b/src/main/res/values-v21/themes.xml
new file mode 100644
index 0000000000000000000000000000000000000000..fddab4663a20fdea2430213220354ae1aae68454
--- /dev/null
+++ b/src/main/res/values-v21/themes.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="ConversationsTheme" parent="@android:style/Theme.Material.Light.DarkActionBar">
+        <item name="android:colorPrimary">@color/primary</item>
+        <item name="android:colorPrimaryDark">@color/primarydark</item>
+        <item name="android:colorAccent">@color/accent</item>
+
+        <item name="TextSizeInfo">12sp</item>
+        <item name="TextSizeBody">14sp</item>
+        <item name="TextSizeHeadline">20sp</item>
+    </style>
+
+</resources>
\ No newline at end of file
diff --git a/src/main/res/values/colors.xml b/src/main/res/values/colors.xml
index 908b8b89a3ee03d30887608b9f68d53cb5696918..c21650a5d025209688586b60763bca5b2c8a6779 100644
--- a/src/main/res/values/colors.xml
+++ b/src/main/res/values/colors.xml
@@ -3,6 +3,7 @@
 
     <color name="primary" type="color">#ff259b24</color>
     <color name="primarydark" type="color">#ff0a7e07</color>
+    <color name="accent">#ff0091ea</color>
     <color name="primarytext" type="color">#de000000</color>
     <color name="secondarytext" type="color">#8a000000</color>
     <color name="ondarktext" type="color">#fffafafa</color>