Using master (98958c81f5065a5de13699d46995d278ecb6709e) with Qt `5.12.3` (also tested with depends) with multiple wallets available. None are shown in the `Open Wallet ->` menu in the gui. The wallets can be loaded from the console, bitcoin-cli etc.
void showNormalIfMinimized(bool fToggleHidden);
    
    void toggleHidden();
    
    void detectShutdown();
    
    void showProgress(const QString &title, int nProgress);
    
    void setTrayIconVisible(bool);
    void showModalOverlay();
};
class UnitDisplayStatusBarControl : public QLabel