These are not my own work,they are Numix icons recoloured to match my Blueberry Plasma colour-scheme in Oomox,and I believe they are Numix Square?
I have set them to inherit Deepin and Breeze icons,so if you don't have those installed you will have to edit it to icons of your choice.
I'm afraid the screenshots are rather limited as I don't have a menu or dock or anything to show them in more detail.