well ... i was searching for the more darker and elegant stock note 3 dark keyboard for my s4 mini but
unluckily there is no ports made for us ..so i got my hands on the apk from system dump and resized
all the button png's properly along with the keyboard background so its compatible ONLY in these cases:
otherwise dont complain of uncomplete theme or non-working for you
-Stock Samsung Rom - rooted - has custom recovery
-HDPI/XHDPI/XXHDPI Device : see here
-Android 4.2.2 or higher ONLY !!
-"SamsungIME.apk" available and in system/app