title: Border colours of canvases (tkinter)
body: <p>I need help with changing the border colour of a canvas in tkinter</p>
  
  <p>This is my code:</p>
  
  <pre><code>w = int(root.winfo_screenwidth())
  loader = Canvas(width=w, height=20, bd=1)
  loader.grid(column=0, row=1)
  </code></pre>
  
  <p>I have tried: </p>
  
  <pre><code>fill="black"
  outline="black"
  bd="black"
  </code></pre>