I just downloaded and extracted the oxygnome directory in /usr/share/themes and in System Settings -> Appreance -> GTK Styles I selected that theme.
I have attached a zip of what I have on my computer.
I just downloaded and extracted the oxygnome directory in /usr/share/themes and in System Settings -> Appreance -> GTK Styles I selected that theme.
I have attached a zip of what I have on my computer.