color options missing from KDE System Settings

The standard color schemes for the KDE desktop seem to have lost the fine-grain options to set colors for individual elements. This function is shown on the KDE web site and was available in openSuSe 15.1. Am I just missing the page I need or was the feature removed? “Standard” schemes that I see are difficult for me because the active and background windows are the same color and hard for my eyes to separate. I want (again) to set colors so the active window pops out.

Mouse over the colour scheme you wish to change, an “Edit” button will them appear, click that and you’ll get the page you’re after.

Thank you!