Adjusting your palette according to context

You've been asked to make a figure for your company's website. The website has a slick black theme, and it would be pretty jarring if your plot were white. To make your plot match the company aesthetic, you can swap the background to a black one with plt.style.use("dark_background").

The figure you've been asked to make plots O₃ values during October 2015 for various cities (provided as oct_2015_o3). You will plot this as a heatmap with the color of each cell encoding how many standard deviations from the overall average O₃ value the measurement falls. Due to the website's dark background, you will want to adjust your color palette to encode null value (or 0 standard deviations from the mean) as dark rather than the default white.

Set the theme of the plot to be dark with plt.style.use().
- You can see the available themes for plt.style.use() by running the line plt.style.available; look for the one that will make your background dark.
Modify the custom palette to be 'dark' for the center value instead of the default white.

Take Hint (-30 XP)

Exercise

Adjusting your palette according to context

Instructions