Click here to download as a .zip
There are a few icon managers out there. I use LiteIcon.
Just drag and drop the .icns files (in the icns folder) onto their corresponding applications, and then log out and back in to refresh the dock.
I recommend using a 2D dock with this icon set. Instructions are in the README.md.
Made with love by Tina as an alternative icon set for people who want a flat, more uniform dock.
For icon requests, get in touch.
The project is on GitHub. If you want to modify any icons or create your own, the vectors of all existing icons as well as a template are available there and in the download link.