Improve settings screen

app/src/main/res/layout/preference_category_custom.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2015 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+          android:id="@android:id/title"
+          android:layout_width="match_parent"
+          android:layout_height="wrap_content"
+          android:layout_marginBottom="0dip"
+          android:textColor="?aboutScreenColor"
+          android:paddingLeft="?android:attr/listPreferredItemPaddingLeft"
+          android:paddingStart="?android:attr/listPreferredItemPaddingLeft"
+          android:paddingTop="8dip" />