Attachment selector style adjastments.

res/drawable/attachment_selector_shadow.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:shape="rectangle">
-
-    <gradient
-        android:startColor="@color/transparent_black_30"
-        android:endColor="@color/transparent_black"
-        android:angle="90"/>
-
-</shape>

res/layout/attachment_type_selector.xml

@@ -8,8 +8,8 @@
 
     <View
         android:layout_width="match_parent"
-        android:layout_height="4dp"
+        android:layout_height="1dp"
-        android:background="@drawable/attachment_selector_shadow"/>
+        android:background="?dividerHorizontal"/>
 
     <LinearLayout
         android:id="@+id/contentView"
@@ -245,7 +245,7 @@
                     android:scaleType="center"
                     android:contentDescription="@string/attachment_type_selector__drawer_description"
                     android:tint="@android:color/white"
-                    app:circleColor="@color/gray50"/>
+                    app:circleColor="?attachment_type_selector_hide_button_background"/>
 
                 <TextView
                     android:layout_marginTop="10dp"

res/values-notnight-v21/themes.xml

@@ -13,6 +13,7 @@
 
         <item name="android:statusBarColor">@android:color/black</item>
 
+        <item name="attachment_type_selector_hide_button_background">@color/gray27</item>
         <item name="attachment_document_icon_small">@drawable/ic_document_small_light</item>
         <item name="attachment_document_icon_large">@drawable/ic_document_large_light</item>
 

res/values/attrs.xml

@@ -3,6 +3,7 @@
     <attr name="theme_type" format="string"/>
 
     <attr name="attachment_type_selector_background" format="color"/>
+    <attr name="attachment_type_selector_hide_button_background" format="color"/>
     <attr name="attachment_document_icon_small" format="reference" />
     <attr name="attachment_document_icon_large" format="reference" />
     <attr name="attachment_document_extension_text_color" format="color" />

res/values/themes.xml

@@ -57,6 +57,7 @@
         <item name="searchViewStyle">@style/TextSecure.BaseDarkTheme.SearchView</item>
 
         <item name="attachment_type_selector_background">?android:windowBackground</item>
+        <item name="attachment_type_selector_hide_button_background">@color/gray50</item>
         <item name="attachment_document_icon_small">@drawable/ic_document_small_dark</item>
         <item name="attachment_document_icon_large">@drawable/ic_document_large_dark</item>
         <item name="attachment_document_extension_text_color">#222</item>