Answer:
aesthetic
Step-by-step explanation:
Based on the information provided within the question it can be said that the change in color represents the aesthetic aspect of packaging. An aesthetic aspect refers to making sure that the packaging has an overall pleasant, positive, beautiful, or artful appearance in order to evoke positive emotions on the viewer. Which in this scenario is exactly what Feather Tissues Inc. is trying to accomplish by changing the color from red to blue, in order to please/attract their customers and in term increase sales.