ha-core/homeassistant/components/litterrobot/translations/bg.json

{
    "config": {
        "step": {
            "user": {
                "data": {
                    "password": "\u041f\u0430\u0440\u043e\u043b\u0430",
                    "username": "\u041f\u043e\u0442\u0440\u0435\u0431\u0438\u0442\u0435\u043b\u0441\u043a\u043e \u0438\u043c\u0435"
                }
            }
        }
    }
}