Which of the following is NOT a best practice for using rich text?

Choosing icons based solely on personal preference is not considered a best practice for using rich text. Best practices emphasize the importance of consistency, clarity, and purpose in design elements. When icons are selected based purely on personal taste, it can lead to confusion or a lack of cohesion within the interface.

In contrast, using rich text styles consistently across all sections fosters a uniform appearance and enhances readability. It allows users to quickly identify and navigate through content. Implementing positive and negative rich text to highlight business values can effectively communicate critical information and add emphasis where needed. Using rich text to convey visual hierarchy helps establish a clear structure, guiding users through the information in a logical manner. All these practices improve user experience and communication, while arbitrary icon selection may detract from those goals.