Have read over a number of related questions here at SO, as well as looked through the Android docs and source to try to figure this out, but I am stumped, although given th
Figured this out, the issue was that while I was setting the listSelector for the ListView to the State List correctly via android:listSelector="@drawable/list_selector", I also needed to set the background for the list item to another State List via android:background="@drawable/list_background"
In the list_background.xml state list, I have:
    
 
Found the answer here:
Changing background color of ListView items on Android
In conjunction with my list selector above, it works perfectly.