I hope it helps you, it is for all issues and with English (en-gb) and Spanish (es-es) to have another language is only to change the acronyms in the installer and place the unit or whatever you prefer. If it doesn't work in your theme, you should check the path that appears in the installer that the search text matches the one you have. Hopefully it works for them without modifications.
You can see it working at LIVE

as a reference to use the installer you can see my manuals (in Spanish)