On the morning of August 23, the Sakai system received a stylistic makeover to adopt the same color scheme as used in the current PLU website. This is a cosmetic change only and should not affect how you use Sakai.
Here's a preview of the new look:
Click to enlarge
Sakai will be out of service on Friday, August 23, 2013, from 6:00AM to 6:30AM to make this "skin" change. At the same time Sakai's rich-text editor, which is embedded within many Sakai tools including Mailtool, Assignments, Announcements, Tests & Quizzes, etc. will be upgraded. More details about the new rich-text editor can be found here.