Highlighter

A highlighter, also called a fluorescent pen, is a type of writing device used to bring attention to sections of text by marking them with a vivid, translucent colour.

[6] The most common color for highlighters is yellow, but they are also found in orange, red, pink, purple, blue, and green varieties.

Other types of highlighters include the trilighter, a triangularly-shaped pen with a different-coloured tip at each corner, and ones that are stackable.

Some word processing software can simulate highlighting by using a technique similar to reverse video on some terminals.

Some web browser extensions also enables users to create digital highlights on websites and online PDFs.