IMatch 2021.14.2 - Accent Colors?

[Darius1968]

As quoted in the release notes for IMatch 2021.14.2: 

Accent Colors #01632
IMatch uses accent colors in various dialogs, to accent or highlight something. Examples are the Variable Selector dialog or the data-driven preview dialog.

The colors used for these purpose were hard-coded before. Now they can be configured under Edit > Preferences > Application: Accent Colors.
Enhancement | #01632

I cannot find this new feature, as Edit>Preferences>Application: Accent Colors is apparently and seemingly nonexistent in this new release of IMatch. 
So, how do I access this new feature? 

[Mario]

I see it here:

[Darius1968]

Problem solved: 
Edit>Preferences>Application>"Show extended settings" was unchecked. 

[jch2103]

Thanks; I'd missed that also!