Method setSubtitle

macos/java/WindowMac.java:85–90

(@NotNull String title)

    }

    @NotNull @Contract("-> this")
    public Window setSubtitle(@NotNull String title) {
        assert _onUIThread() : "Should be run on UI thread";
        _nSetSubtitle(title);
        return this;
    }

    /**
     * <p>Adds the system icon for the specified file next to the window title (and allows viewing the parent directories).</p>