By default TransparentRETS supports the English language, and a "lang" file is included that contains English phrases which can be edited to to use your own phrases or translations.
Language file location:
The file: lang.php contains a large PHP $lang array, you can edit the values as you wish, however make sure not to change the array keys. If you do make changes, make sure to keep a separate copy before upgrading TMAPS, otherwise your lang.php file will be overwritten.
Note: When altering the array values you must be careful when using the apostrophe ' character. Any apostrophies that appear in your text must be escaped with a slash \ otherwise you will receive an error and TMAPS will not operate until you fix or undo your changes.
e.g. raw text:
Don't overwrite your files.
Don\'t overwrite your files.