Manual Method


Navigate with Filza to the original folder (TelephonyUI-4 for iOS11 and TelephonyUI-7 for iOS12 and 13) in the specific location mentioned below. Click on a png in the Original Folder to check it's dimensions, 225 or 150. 

The themed PhoneUI packs will be installed in var/mobile/Documents/BuufJuicedMods/PhoneUI/yourtheme/225 and 150. Choose the folder according to the png dimensions you checked in the fist step. Inside you'll find a TelephonyUI-7 folder, copy it and paste in the locations below (if your original is TelephonyUI-4 then rename it).

By the way it's not a problem if you make a mistake other that it won't display the right size, so you just can switch to the other one.

1. For Passcode navigate, drop in : var/mobile/Library/Caches/

2. For Dialer navigate, drop in : var/mobile/Containers/Data/Application/Phone/Library/Caches/

3. For In Call KeyPad navigate, drop in : var/mobile/Containers/Data/Application/InCallService/Library/Caches/

If you want to revert, just erase them.