Adding locales - not languages


Dec 10, 2010
First, sorry for bad title name.
I want to know if it´s possible to add more locales to the rom, but not necessarily more languages?

I have tried the MIUI-AU rom where I can change locale to my native language (swedish). The rom itself does not change language, its still in english, but all other apps like maps, market and so on uses swedish language and units.

Now, why can´t I just use morelocale2? Well, if I use that the most of the rom is in english and uses swedish units, but many string are still in chinese, which I don´t understand.

I don´t mind if the rom is english, but I would appreciate if apps were in my native language.