I had it working easily in a tListBOX by changing the ItemStyle to colorlistboxitemstyle. Unfortunately, there is no such setting for tListVIEW. So how do I get a colored square on the line like I had in the tListBOX – without loading a bitmap?
StackOverflow: Firemonkey
Embarcadero: Firemonkey OOP
Embarcadero: Firemonkey C++