I am new to rooting and custom roms, so I have a couple of questions about flashing different themes. I currently am using ss4.6 w/ stock kernal and works great. So the ? is when adding a theme do I just put it on the sd card in update.zip form and install over the rom without wiping anything? BTW I rooted the old fashioned way with rsd lite and have been using sprecovery to flash the roms.