UNCCGameDay/res/drawable/gamedaytheme_btn_default_holo_dark.xml

<?xml version="1.0" encoding="utf-8"?>


<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_window_focused="false" android:state_enabled="true"
        android:drawable="@drawable/register" />
    <item android:state_window_focused="false" android:state_enabled="false"
        android:drawable="@drawable/button_disabled" />
    <item android:state_pressed="true" 
        android:drawable="@drawable/register" />
    <item android:state_focused="true" android:state_enabled="true"
        android:drawable="@drawable/button_disabled" />
    <item android:state_enabled="true"
        android:drawable="@drawable/silver" />
    <item android:state_focused="true"
        android:drawable="@drawable/button_disabled" />
    <item
         android:drawable="@drawable/silver" />
</selector>