added icons in settings

app/src/main/res/xml/preferences.xml

@@ -38,16 +38,21 @@
     <PreferenceCategory android:title="@string/project_pref">
         <Preference
             android:key="prefFaq"
-            android:title="@string/pref_faq"/>
+            android:title="@string/pref_faq"
+            android:icon="?attr/ic_question_answer" />
+
         <Preference
             android:key="prefKnownIssues"
-            android:title="@string/pref_known_issues"/>
+            android:title="@string/pref_known_issues"
+            android:icon="?attr/ic_known_issues" />
         <Preference
             android:key="prefSendCrashReport"
             android:title="@string/crash_report_title"
-            android:summary="@string/crash_report_sum"/>
+            android:summary="@string/crash_report_sum"
+            android:icon="?attr/ic_bug" />
         <Preference
             android:key="prefAbout"
-            android:title="@string/about_pref"/>
+            android:title="@string/about_pref"
+            android:icon="?attr/action_about" />
     </PreferenceCategory>
 </PreferenceScreen>

core/src/main/res/values/attrs.xml

@@ -55,6 +55,9 @@
     <attr name="ic_create_new_folder" format="reference"/>
     <attr name="ic_cast_disconnect" format="reference"/>
     <attr name="ic_swap" format="reference"/>
+    <attr name="ic_question_answer" format="reference" />
+    <attr name="ic_bug" format="reference" />
+    <attr name="ic_known_issues" format="reference" />
     <attr name="master_switch_background" format="color"/>
     <attr name="currently_playing_background" format="color"/>
 

core/src/main/res/values/styles.xml

@@ -66,8 +66,13 @@
         <item type="attr" name="ic_sd_storage">@drawable/ic_sd_storage_grey600_36dp</item>
         <item type="attr" name="ic_create_new_folder">@drawable/ic_create_new_folder_grey600_24dp</item>
         <item type="attr" name="ic_cast_disconnect">@drawable/ic_cast_disconnect_grey600_36dp</item>
+        <item type="attr" name="ic_question_answer">@drawable/ic_forum_grey600_24dp</item>
+        <item type="attr" name="ic_bug">@drawable/ic_bug_grey600_24dp</item>
+        <item type="attr" name="ic_known_issues">@drawable/ic_format_list_bulleted_grey600_24dp</item>
+
         <item type="attr" name="master_switch_background">@color/master_switch_background_light</item>
         <item type="attr" name="currently_playing_background">@color/highlight_light</item>
+
         <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
 
         <item type="attr" name="about_screen_background">#e5e5e5</item>
@@ -141,6 +146,9 @@
         <item type="attr" name="ic_sd_storage">@drawable/ic_sd_storage_white_36dp</item>
         <item type="attr" name="ic_create_new_folder">@drawable/ic_create_new_folder_white_24dp</item>
         <item type="attr" name="ic_cast_disconnect">@drawable/ic_cast_disconnect_white_36dp</item>
+        <item type="attr" name="ic_question_answer">@drawable/ic_baseline_question_answer_white_24dp</item>
+        <item type="attr" name="ic_bug">@drawable/ic_bug_white_24dp</item>
+        <item type="attr" name="ic_known_issues">@drawable/ic_format_list_bulleted_white_24dp</item>
         <item type="attr" name="master_switch_background">@color/master_switch_background_dark</item>
         <item type="attr" name="currently_playing_background">@color/highlight_dark</item>
         <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>