Changed the color accent

app/src/main/res/values/colors.xml

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="colorPrimary">#795548</color>
-    <color name="colorPrimaryDark">#5d4037</color>
-    <color name="colorAccent">#ff8f00</color>
+    <color name="colorPrimary">#3b5998</color>
+    <color name="colorPrimaryDark">#3b5998</color>
+    <color name="colorAccent">#dfe3ee</color>
 </resources>