C# wpf --- This is a "continuation" of c-sharpcorner.com/forums/how-do-change-the-background-color-on-one-listbox-item-continued-sharp4.
The <UserControl.Resources> results in:
The attachable property 'Resources' was not found in type 'UserControl'.
There does not seem to be a solution. Thanks to the responses by Abhishek Yadav, Naimish Makwana, Tuhin Paul, and Rohini Parade.