What happened to the "Highlight fields with same text as in focused field" option in the Preferences?

The "Highlight fields with same text as in focused field" checkbox disappeared from Preferences. The compared versions are 5278 and 5267. I haven't checked the versions in between.

The image is here https://ibb.co/ftsgW7 Do not know why it doesn't show.

Look 3 options up, or in the attached image on the purple box. I extended the setting from a simple checkbox to a customizable color.