title: Border for tkinter Label
body: <p>Not really relevant but i'm building a calendar and I have a lot of Label widgets, and therefore it will look alot nicer if I had some borders for them!</p>
  
  <p>I have seen you can do this for other widgets such as Button, Entry and Text.</p>
  
  <p>Minimal code:</p>
  
  <pre><code>from tkinter import *
  
  root = Tk()
  
  L1 = Label(root, text="This")
  L2 = Label(root, text="That")
  
  L1.pack()
  L2.pack()
  </code></pre>
  
  <p>I have tried setting</p>
  
  <pre><code>highlightthickness=4
  highlightcolor="black"
  highlightbackground="black"
  borderwidth=4
  </code></pre>
  
  <p>inside the widget, but still the same result.</p>
  
  <p><a href="https://i.stack.imgur.com/h2NUB.png" rel="noreferrer"><img src="https://i.stack.imgur.com/h2NUB.png" alt="example pic tkinter"></a></p>
  
  <p>Is this even possible to do? Thank you!</p>