Why is the Highlight option grayed out and inactive when highlighting text?

When I highlight a word or number, then select Insert > Highlight, Highlight is grayed out and inactive. How do I fix that?



[Re-Titled by Moderator]

Original Title: Highlight not working.

Mac Studio, macOS 26.1

Posted on Dec 11, 2025 2:54 PM

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Question marked as Top-ranking reply

Posted on Dec 12, 2025 10:04 AM

It isn't completely obvious, but Insert -> Highlight only applies to text boxes, or text attached to shapes. It doesn't apply to text within cells.


For cell highlighting/formatting, use Inspector -> Format -> Cell, although this doesn't allow for single-word highlighting in the same way... you can set the cell background color, or the color for all text in the cell, but you cannot selectively highlight certain words.

4 replies
Question marked as Top-ranking reply

Dec 12, 2025 10:04 AM in response to Kenabler

It isn't completely obvious, but Insert -> Highlight only applies to text boxes, or text attached to shapes. It doesn't apply to text within cells.


For cell highlighting/formatting, use Inspector -> Format -> Cell, although this doesn't allow for single-word highlighting in the same way... you can set the cell background color, or the color for all text in the cell, but you cannot selectively highlight certain words.

Why is the Highlight option grayed out and inactive when highlighting text?

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