No I have not combined them, but the can be flashed back to back easily starting with theme then keyboard.
In recovery if you go to mounts and storage you will see the first one is system. The theme unmounts it during the flashing process. All you have to do is select system ( useing the camera button) then go back to reboot.
If you skip that part the theme will still work but you may see a differance in battery life.
I have been working on a new theme and kind of forgot about putting the two zips together.
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