Keynote
Highlight text in Keynote on Mac
You can highlight text in text boxes and in shapes. These highlights aren’t visible in printed presentations.
When multiple people are working on a presentation, each person’s highlights appear in a unique colour. To learn how to change your colour, see Set author name and comment colour.
Tip: If you want highlights that are visible in your final presentation, add a background colour to text in any colour. This type of highlight isn’t included with Keynote review tools.