eos-x theme is the elementary os odin theme with mac os window controls.
install the latest version from git, clone the repository with
mkdir -p ~/.themes && git clone https://github.com/prescindivel/eos-x --depth 1 ~/.themes
after this you can activate the theme with the pantheon-tweaks
the plank theme is installed along with the normal eos-x theme.
now open the Plank preferences window by executing plank --preferences
from a terminal and select Gtk+
as the theme.
If you find a bug, please report it at https://github.com/prescindivel/eos-x/issues