Add tint to preference icons

Closes #6540
// FREEBIE

res/drawable/ic_advanced_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_advanced_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_brightness_6_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_brightness_6_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_forum_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_forum_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_laptop_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_laptop_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_notifications_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_notifications_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_security_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_security_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/drawable/ic_textsms_24dp.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
+    android:src="@drawable/ic_textsms_white_24dp"
+    android:tint="?attr/pref_icon_tint"/>

res/values/attrs.xml

@@ -116,14 +116,7 @@
     <attr name="menu_forward_icon" format="reference" />
     <attr name="menu_save_icon" format="reference" />
 
-    <attr name="pref_ic_sms_mms" format="reference" />
-    <attr name="pref_ic_notifications" format="reference" />
-    <attr name="pref_ic_app_protection" format="reference" />
-    <attr name="pref_ic_appearance" format="reference" />
-    <attr name="pref_ic_storage" format="reference" />
-    <attr name="pref_ic_chats" format="reference" />
-    <attr name="pref_ic_devices" format="reference" />
-    <attr name="pref_ic_advanced" format="reference" />
+    <attr name="pref_icon_tint" format="color"/>
 
     <attr name="pref_divider" format="reference" />
 

res/values/themes.xml

@@ -208,13 +208,7 @@
 
         <item name="reminder_header_background">#ff1d85d7</item>
 
-        <item name="pref_ic_sms_mms">@drawable/ic_textsms_black_24dp</item>
-        <item name="pref_ic_notifications">@drawable/ic_notifications_black_24dp</item>
-        <item name="pref_ic_app_protection">@drawable/ic_security_black_24dp</item>
-        <item name="pref_ic_appearance">@drawable/ic_brightness_6_black_24dp</item>
-        <item name="pref_ic_chats">@drawable/ic_forum_black_24dp</item>
-        <item name="pref_ic_devices">@drawable/ic_laptop_black_24dp</item>
-        <item name="pref_ic_advanced">@drawable/ic_advanced_black_24dp</item>
+        <item name="pref_icon_tint">@color/textsecure_primary_dark</item>
 
         <item name="pref_divider">@drawable/preference_divider_light</item>
 
@@ -340,13 +334,7 @@
 
         <item name="reminder_header_background">@color/textsecure_primary_dark</item>
 
-        <item name="pref_ic_sms_mms">@drawable/ic_textsms_white_24dp</item>
-        <item name="pref_ic_notifications">@drawable/ic_notifications_white_24dp</item>
-        <item name="pref_ic_app_protection">@drawable/ic_security_white_24dp</item>
-        <item name="pref_ic_appearance">@drawable/ic_brightness_6_white_24dp</item>
-        <item name="pref_ic_chats">@drawable/ic_forum_white_24dp</item>
-        <item name="pref_ic_devices">@drawable/ic_laptop_white_24dp</item>
-        <item name="pref_ic_advanced">@drawable/ic_advanced_white_24dp</item>
+        <item name="pref_icon_tint">#FFFFFF</item>
 
         <item name="pref_divider">@drawable/preference_divider_dark</item>
 

res/xml/preferences.xml

@@ -3,30 +3,30 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
     <Preference android:key="preference_category_sms_mms"
                 android:title="@string/preferences__sms_mms"
-                android:icon="?pref_ic_sms_mms"/>
+                android:icon="@drawable/ic_textsms_24dp"/>
 
     <Preference android:key="preference_category_notifications"
                 android:title="@string/preferences__notifications"
-                android:icon="?pref_ic_notifications"/>
+                android:icon="@drawable/ic_notifications_24dp"/>
 
     <Preference android:key="preference_category_app_protection"
                 android:title="@string/preferences__privacy"
-                android:icon="?pref_ic_app_protection"/>
+                android:icon="@drawable/ic_security_24dp"/>
 
     <Preference android:key="preference_category_appearance"
                 android:title="@string/preferences__appearance"
-                android:icon="?pref_ic_appearance"/>
+                android:icon="@drawable/ic_brightness_6_24dp"/>
 
     <Preference android:key="preference_category_chats"
                 android:title="@string/preferences__chats"
-                android:icon="?pref_ic_chats"/>
+                android:icon="@drawable/ic_forum_24dp"/>
 
     <Preference android:key="preference_category_devices"
                 android:title="@string/preferences__linked_devices"
-                android:icon="?pref_ic_devices"/>
+                android:icon="@drawable/ic_laptop_24dp"/>
 
     <Preference android:key="preference_category_advanced"
                 android:title="@string/preferences__advanced"
-                android:icon="?pref_ic_advanced"/>
+                android:icon="@drawable/ic_advanced_24dp"/>
 
 </PreferenceScreen>