In order to help Veronica overcome her fear of pink highlighters, a therapist would have to conditioner her to become more comfortable around pink highlighters. In this case, it is most likely that the therapist used the exposure technique, or a therapeutic method known as "exposure and response prevention". By slowly and gradually introducing Veronica to highlights, in a controlled environment, she could begin to see that there is nothing to be afraid of, and become accustomed to being around highlighters without fear.
