Aperture: Make text color on top bar items match tint

Signed-off-by: Luca Stefani <luca.stefani.ge1@gmail.com>
Change-Id: I8ac4888844c0b1e8b05ce6b9b8e45911ca844cf7
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 44834fc..4daa9c0 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -29,6 +29,7 @@
         <item name="tint">?attr/colorPrimary</item>
         <item name="backgroundTint">?attr/colorOnPrimary</item>
         <item name="android:padding">0dp</item>
+        <item name="android:textColor">?attr/colorPrimary</item>
     </style>
 
     <!-- Shutter button theme -->