Refine Translation in your Language
You can find the English strings here (strings.xml) and here (arrays.xml). Both file need to be translated.
The strings needed to be translated is like this:
<string name="folder">Folder</string>
You only need to translate those are not in <>, in this example, "Yes". Just keep <string name="yes"> and </string> there, you don't need to touch them.
After you translate them, please send me a mail and I'll put it into the app.