TraditionalHumanized themes are gtk2, gtk3 themes for Ubuntu Mate 18.04. They were derived from well-polished TraditionalOk Theme.
The essence of TraditionalHumanized themes is that they reproduce classic Human and Human-Clearlooks colors, use Humanity icon set and feature dimmed background colors. They does not kill eyes.
Do not forget to install Humanity icon set before turning TraditionalHumanized themes on.