The Style section lets you choose which cPanel theme you’d like to use. This is simply a way for you to pick what your dashboard looks like. cPanel’s current default theme is called Basic. If you’re interested in using the older version of the theme, you can switch back to Retro.
cPanel Theme/Style Selection
To change your theme either scroll down to the Preferences section or simply use the drop down at the top of the page (where your username is) as shown here:
Next, select Change Style