How to change SmarterMail 16.x theme

Themes allow users to customize the look and feel of their SmarterMail accounts by choosing their own colors (Dark/Light). To select a theme, please follow the steps list below:
1. Log in to SmarterMail.
2. Click the "Settings" icon on the top navigation menu (it is an icon that looks like gears).
3. Click the "Account" folder in the left pane.
4. Select your "Theme" under the section Webmail
5. Click "Save".