If translated theme supports internationalizing using locale files, you can edit the localization for each language using "Theme Localization", the interface of which is the extended functionality of language editor from Shopify.
Use application language editor, which has a series of languages and categories tabs across the top of the screen. Each tab has own sections. Each section has own fields.
Follow next steps:
- Go to the "Themes" menu section.
- Press "Theme localization" of your necessary translated theme.
- Translate all needed fields of categories section to any required languages.
- Click primary "Save" button.
Using Theme Localization you can also add your own localization variables using the "Custom Variables" tab.