title: Android PreferenceFragment change overscroll color
body: <p>In Android 5 (Lollipop) the <code>colorPrimaryDark</code> is used for the overscroll color in listviews. Now I want to change it everywhere. I found a way to set for a single <code>ListView</code>, but the <code>PreferenceFragment</code> has no external layout for editing. How can I set the overscroll color for every <code>ListView</code> in my whole app?</p>