The User Console has three themes built in, called Crystal, Ruby, and Sapphire. Ruby is the default theme. To change the theme to Crystal or Sapphire, follow these instructions.
Note: Before proceeding, save any edits you have made in the User Console to your reports, dashboards, etc.
From any page of the User Console, click View in the upper-left menu bar.
Select Themes, then select the theme you want to use from the drop-down menu.
When prompted, select Yes, Change Theme.
The Home page refreshes and appears with your chosen theme.