Themes allow users to change the look and feel of Moodle.  A theme is selected for the Moodle server but users are allowed to change themes if they desire.  If no theme is selected, the default theme of the server will be used.    Listed below are the steps for setting the theme for your user profile regardless if you are a student or teacher in Moodle. 

Step 1:

Click the drop-down arrow next to your image which is displayed in the top corner of your browser window and select Profile.

Step 2:

Select Edit Profile

Step 3:

Scroll down and select Preferred Theme

Step 4:

Select your preferred theme.  If you are unsure, it's recommend you start with Default.  This will use the server's current theme which is set to Fordson.