Feng-GUI's predictive analytics reports and feedback are using eye tracking metrics and terms.
Here is a list of recommended reading for further learning about eye tracking terms and interpretation.

Learn about eye tracking terms and reports.
Eye Tracking: The Complete Pocket Guide (iMotions)
10 Most Used Eye Tracking Metrics and Terms (iMotions)
Top 10 Misconceptions About eye tracking (UXPA)
How to Use Heatmaps to Increase Your Conversion Rate

Results interpretation
Learn how to interpret the reports.
How to Analyze and Interpret Heat Maps What does eye tracking data mean and how do I make sense of it all? (tobii)
What does eye tracking data tell us? (tobii)

15 Powerful Examples of Neuromarketing in Action
iMotions Neuromarketing Secrets

Predictive Visual Analytics
Learn about Predictive Analytics and Computational Attention
"Modeling the role of salience in the allocation of overt visual attention" Vision Research, vol. 42, no. 1, pp. 107–123, 2002.
D. Parkhurst, K. Law, and E. Niebur
Presentation - Cognitive Psychology Attention

Aesthetics Practices
Learn about the impact of aesthetics on visual attention
Why Simple Website Designs Are Scientifically Better
Designing with contrast: 20 tips from a designer
Capturing User Attention with Color