I have been looking at various themes and I notice that many include specifically themed apps...like facebook and gmail. Can you extract only the themed apks from the theme without installing the theme? And then install those apks on a device? I've read threads about extracting from installed roms/themes but I would prefer to extract only what I want without having to install and restore a backup. I see that I can unzip the files and get the apk but how to I install to my phone? Is there a difference whether the apk is in system/app or data/app?