In order for overlays to be drawn on icons:

EasyListview.pas, line 21054:

if OverlayIndex > -1 then

fStyle := FStyle or IndexToOverLayMask(OverlayIndex);

must be something like:

if OverlayIndex > -1 then begin ImageList_SetOverlayImage(Images.Handle, OverlayIndex, 1); fStyle := FStyle or IndexToOverLayMask(1); end;