At first, please don't suspect that if I know how to translate Joomla extensions. I had translated more than 500 Joomla extensions in recent years. I know exactly everything about extension translating.
So, this must be a bug of Gantry Framework itself.
Look at following screenshot images:
1. On the "template manager" page, you can see that all backend menu and list column titles, and bottom link, are all in proper Chinese language. This can prove that my Joomla core uses Chinese as the default backend language.
This image is hidden for guests.
Please log in or register to see it.
2. When open the gantry template parameter page, you can see that the Tabs title are also in correct Chinese language, but some options are unreadable symbols ! Even those bottom links has been turned into unreadable symbols instead of proper Chinese characters!
This image is hidden for guests.
Please log in or register to see it.
This image is hidden for guests.
Please log in or register to see it.
The point is: on Gantry options page, SOME has been properly translated, but OTHER options are NOT ! Since they are in one single language file, you can not suspect that I made a mistake in language file.
So, I am sure this is a bug of Gantry itself.
I had tested my language files on Gantry 4.1.24, the latest version, this issue still exists.
I think it must relates to some encoding code which had been hardcoded in some Gantry files.
Hope you will fix this bug soon.
Thank you.