title: How to set the transparency of the tkinter frame?
body: <p>Python version 2.7</p>
  <p>Code:</p>
  <pre><code>from Tkinter import *
  
  root = Tk();
  root.geometry ('{}x{}'.format(w,h));
  left_frame = Frame(root, width = w*0.8, height=400, bg='#988C89');
  right_frame = Frame(root, bg='#988C89',  width = w*0.8, height=400 );
  
  
  left_frame.grid_propagate(0);
  right_frame.grid_propagate(0);
  
  root.grid_rowconfigure(1, weight=1);
  root.grid_columnconfigure(0, weight=1); 
  
  visible = Frame (root,  width = w*0.8, height=400);
  visible.grid(row=0, column=0, sticky=&quot;new&quot;);
  </code></pre>
  <p>How do I adjust the transparency of a visible frame?</p>
  <p>If I add the code</p>
  <pre><code> visible.attributes(&quot;transparentcolor&quot;,&quot;red&quot;)
  </code></pre>
  <p>I get <code>error : AttributeError: Frame instance has no attribute 'attributes'</code></p>
  <p>and with code</p>
  <pre><code>visible.configure(bg='#988C8900');
  </code></pre>
  <p>I get <code>error : tkinter.TclError: invalid color name &quot;#988C8900&quot;</code></p>
  <p>What should I do?</p>