Wildcat 1.5 beta
This is only a mod of elementary Gtk theme by DanRabbit, and it's influenced by Adwaita Cupertino by trastes, so all hail to them!
Theme is designed for Gnome-Classic
-with one panel at the top and dock at the bottom
-with AppMenu Indicator in panel
-with marlin or pantheon-files as default file manager
You are free to fork it to other desktop environments.
It looks best with Faenza-Radiance or Faience.
extract .zip file, then extract .tar.gz file and copy it to .themes folder (hidden in your home folder), or to usr/share/themes (and change properties of files and folders to be seen and used by users other than root).