Ok the icon set’s are not new, but they were started as gnome icon set’s and now they fit’s perfect the KDE desktop. So give this two awesome icon set’s a try
both icon set’s are available with system settings -> Icons -> Get new Theme. The icon sets are well maintained and the designers are very welcome in help and KDE support. Thanks a lot. Don’t forget to vote in the store.
I know breeze icon awesome but we have users with different taste so eat what you like not what you get. If somebody know an awesome icon theme and need kde support, let me know, I’m always happy if I can help. For the not monochrome icon theme fans I’m working on elementary-kde icon extension and I hope I can review oxygen.
NOTE: breeze-icons are well supported and will be full maintained in the future. I don’t want to drop breeze. I’d like to help other designers to develop for KDE.