macOS buttons for Elementary OS Loki

This is close, minimize, maximize buttons in macOS (Yosemite, El Capitan, Sierra) style for default theme Elementary OS.

Different states of buttons can see here - [click].

Install guide

Use root and copy OS-X-buttons folder to this path /usr/share/themes/. Folder OS-X-buttons must be in themes directory.
Use elementary-tweaks to apply a theme. Go to Appearance/GTK+ and select OS-X-buttons in dropdown list.