Which technique is often used to highlight new sections or ideas in written communication?

Using bullet points is an effective technique to highlight new sections or ideas in written communication. Bullet points create a visually distinct separation between individual items or concepts, making it easier for readers to quickly scan and understand the main points being presented. This format enhances clarity by breaking down complex information into digestible chunks, allowing for a clear and organized presentation of thoughts.

In contrast, italics are often used for emphasis or to denote titles and foreign words but may not effectively highlight a list of new ideas or sections. Subscript, commonly found in mathematical or scientific contexts, serves a specific purpose and does not aid in bringing attention to new ideas in a general context. Changing font color can also highlight new sections; however, it might not be as universally recognized as bullet points for outlining or summarizing ideas, and it can sometimes disrupt the visual flow if not used consistently.