Properly set the document download icon tint.

res/layout/conversation_item_received_document.xml

@@ -9,4 +9,5 @@
         android:visibility="gone"
         app:doc_titleColor="?conversation_item_received_text_primary_color"
         app:doc_captionColor="?conversation_item_received_text_secondary_color"
+        app:doc_downloadButtonTint="@color/core_white"
         tools:visibility="visible"/>

res/layout/conversation_item_sent_document.xml

@@ -9,4 +9,5 @@
         android:visibility="gone"
         app:doc_titleColor="?conversation_item_sent_text_primary_color"
         app:doc_captionColor="?conversation_item_sent_text_secondary_color"
+        app:doc_downloadButtonTint="?conversation_item_sent_download_icon_color"
         tools:visibility="visible"/>

res/layout/document_view.xml

@@ -77,7 +77,6 @@
                            android:visibility="gone"
                            android:background="@drawable/circle_touch_highlight_background"
                            android:src="@drawable/ic_download_circle_fill_white_48dp"
-                           android:tint="@color/core_grey_60"
                            android:contentDescription="@string/audio_view__download_accessibility_description"/>
 
             </org.thoughtcrime.securesms.components.AnimatingToggle>

res/values/attrs.xml

@@ -76,6 +76,7 @@
     <attr name="conversation_item_sent_text_indicator_tab_color" format="reference|color"/>
     <attr name="conversation_item_sent_indicator_text_background" format="reference" />
     <attr name="conversation_item_sent_icon_color" format="color" />
+    <attr name="conversation_item_sent_download_icon_color" format="reference|color"/>
     <attr name="conversation_item_update_text_color" format="reference"/>
     <attr name="conversation_item_last_seen_text_color" format="reference"/>
     <attr name="conversation_item_last_seen_line_color" format="reference"/>
@@ -278,6 +279,7 @@
     <declare-styleable name="DocumentView">
         <attr name="doc_titleColor" format="color" />
         <attr name="doc_captionColor" format="color" />
+        <attr name="doc_downloadButtonTint" format="color" />
     </declare-styleable>
 
     <declare-styleable name="ConversationItemFooter">

res/values/themes.xml

@@ -191,6 +191,7 @@
         <item name="conversation_item_sent_text_primary_color">@color/core_grey_90</item>
         <item name="conversation_item_sent_text_secondary_color">@color/core_grey_60</item>
         <item name="conversation_item_sent_icon_color">@color/core_grey_60</item>
+        <item name="conversation_item_sent_download_icon_color">@color/core_grey_60</item>
         <item name="conversation_item_sent_text_indicator_tab_color">#99000000</item>
         <item name="conversation_item_received_text_primary_color">@color/core_white</item>
         <item name="conversation_item_received_text_secondary_color">@color/core_white</item>
@@ -295,6 +296,7 @@
         <item name="conversation_item_sent_text_primary_color">@color/core_grey_05</item>
         <item name="conversation_item_sent_text_secondary_color">@color/core_grey_25</item>
         <item name="conversation_item_sent_icon_color">@color/core_grey_25</item>
+        <item name="conversation_item_sent_download_icon_color">@color/core_white</item>
         <item name="conversation_item_sent_text_indicator_tab_color">#99ffffff</item>
         <item name="conversation_item_received_text_primary_color">@color/core_grey_05</item>
         <item name="conversation_item_received_text_secondary_color">@color/core_grey_25</item>

src/org/thoughtcrime/securesms/components/DocumentView.java

@@ -67,13 +67,16 @@ public class DocumentView extends FrameLayout {
     this.document         = findViewById(R.id.document);
 
     if (attrs != null) {
-      TypedArray typedArray = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.DocumentView, 0, 0);
+      TypedArray typedArray   = getContext().getTheme().obtainStyledAttributes(attrs, R.styleable.DocumentView, 0, 0);
       int        titleColor   = typedArray.getInt(R.styleable.DocumentView_doc_titleColor, Color.BLACK);
       int        captionColor = typedArray.getInt(R.styleable.DocumentView_doc_captionColor, Color.BLACK);
+      int        downloadTint = typedArray.getInt(R.styleable.DocumentView_doc_downloadButtonTint, Color.WHITE);
       typedArray.recycle();
 
       fileName.setTextColor(titleColor);
       fileSize.setTextColor(captionColor);
+      downloadButton.setColorFilter(downloadTint, PorterDuff.Mode.MULTIPLY);
+      downloadProgress.setBarColor(downloadTint);
     }
   }