Sierra can be displayed using one of two color schemes, Half Dome or Glacier Point. Either color scheme can be used for the Sierra display.
Table of Contents
Here is the color scheme for Half Dome.
Here is the color scheme for Glacier Point.
How to change the color scheme
Login to Sierra, and click on Admin>Settings from the menu bar.
Click the Display tab in the Settings box. Under Look and Feel, change the Skin to either Half Dome or Glacier Point. Click Save Settings and OK.
Sierra will need to be restarted to see the change.