title: Change color of selected matplotlib histogram bin bar, given it's value
body: <p><a href="https://stackoverflow.com/questions/35780048/labelling-a-matplotlib-histogram-bin-with-an-arrow">Similar to a question I asked previously</a>, I have a MWE like this:</p>
  
  <pre><code>import pandas as pd
  import matplotlib.pyplot as plt
  import seaborn as sns
  import numpy as np
  
  pd.Series(np.random.normal(0, 100, 1000)).plot(kind='hist', bins=50, color='orange')
  
  bar_value_to_colour = 102
  </code></pre>
  
  <p>I then want to use the <code>bar_value_to_colour</code> variable to automatically change the colour of the bar on the histogram in which the value resides to blue, for example:</p>
  
  <p><a href="https://i.stack.imgur.com/9HGgb.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9HGgb.png" alt="enter image description here"></a></p>
  
  <p>How can I achieve this?</p>