okay so editing this as I have a different question relating to theming and backgrounds and the contacts.apk
I was in fact able to get a different custom background for the search field of contacts.
It's referenced by the styles.xml and the styles smali as "ContactsSearchTheme"
which differs from the "DialTactsTheme"
I'm guessing that I could add my own themes to both the xml and smali, which should enable the ability to have different backgrounds.
However, the AndroidManifest.xml also has those listed inside it, and that language I'm still working on learning
Would I need to add to all three pieces for it to work right?
Or would just the styles and smali be enough?