Replaced next/previous icons

app/src/main/res/drawable/twotone_navigate_next_24.xml

@@ -1,10 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="?attr/colorControlNormal">
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M10.02,18l6,-6 -6,-6 -1.41,1.41L13.19,12l-4.58,4.59z"/>
-</vector>

app/src/main/res/drawable/twotone_play_arrow_24.xml

@@ -6,5 +6,10 @@
     android:tint="?attr/colorControlNormal">
   <path
       android:fillColor="@android:color/white"
-      android:pathData="M14.2,6l-6,6 6,6 1.41,-1.41L11.03,12l4.58,-4.59z"/>
+      android:pathData="M10,8.64v6.72L15.27,12z"
+      android:strokeAlpha="0.3"
+      android:fillAlpha="0.3"/>
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M8,19l11,-7L8,5v14zM10,8.64L15.27,12 10,15.36L10,8.64z"/>
 </vector>

app/src/main/res/drawable/twotone_play_arrow_back_24.xml

@@ -0,0 +1,19 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <group
+        android:pivotX="12"
+        android:scaleX="-1">
+        <path
+            android:fillAlpha="0.3"
+            android:fillColor="@android:color/white"
+            android:pathData="M10,8.64v6.72L15.27,12z"
+            android:strokeAlpha="0.3" />
+        <path
+            android:fillColor="@android:color/white"
+            android:pathData="M8,19l11,-7L8,5v14zM10,8.64L15.27,12 10,15.36L10,8.64z" />
+    </group>
+</vector>

app/src/main/res/menu-ldrtl/action_messages.xml

@@ -3,7 +3,7 @@
 
     <item
         android:id="@+id/action_next"
-        android:icon="@drawable/twotone_navigate_next_24"
+        android:icon="@drawable/twotone_play_arrow_24"
         android:title="@string/title_next" />
 
     <item
@@ -23,6 +23,6 @@
 
     <item
         android:id="@+id/action_prev"
-        android:icon="@drawable/twotone_navigate_before_24"
+        android:icon="@drawable/twotone_play_arrow_back_24"
         android:title="@string/title_previous" />
 </menu>

app/src/main/res/menu/action_messages.xml

@@ -3,7 +3,7 @@
 
     <item
         android:id="@+id/action_prev"
-        android:icon="@drawable/twotone_navigate_before_24"
+        android:icon="@drawable/twotone_play_arrow_back_24"
         android:title="@string/title_previous" />
 
     <item
@@ -23,6 +23,6 @@
 
     <item
         android:id="@+id/action_next"
-        android:icon="@drawable/twotone_navigate_next_24"
+        android:icon="@drawable/twotone_play_arrow_24"
         android:title="@string/title_next" />
 </menu>