IG/Food 1 (IMAGE) University of Georgia Caption University of Georgia researchers found that adding warm tones, including red, orange and yellow, can help healthy food images gain more engagement on social media. One example is adding tomatoes to the top of an omelet. Credit Andrew Davis Tucker/UGA Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.