title: Dashed line style in ttk Treeview
body: <p>I am creating simple Tkinter app with ttk Treeview widget. I know tkinter is more limited with style, but wondering that there is any way to make its syle "Dashed line" like this?:</p>
  
  <p><a href="https://i.stack.imgur.com/hfPE1.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hfPE1.jpg" alt="enter image description here"></a></p>