text: #ifndef ABOUT_H
  #define ABOUT_H
  
  #include <QDialog>
  #include <vector>
  #include <string>
  
  namespace Ui {
  class about;
  }
  
  class about : public QDialog
  {
      Q_OBJECT
  
  public:
      explicit about(const std::vector<std::vector<std::string>> & langs,int active=0,QWidget *parent = nullptr);
      ~about();
  
  private:
      Ui::about *ui;
  };
  
  #endif // ABOUT_H
  