1. Hidden text that is displayed when Brightened.

2. How much better to be a participant in the past, an adventurer in an undiscovered country, searching for the hidden text.

3. Unrelated hidden text is disguised by making it the same color as the background, using a tiny font size, or hiding it within HTML code such as "no frame" sections, alt attributes, zero-sized DIVs, and "no script" sections.