QTableWidgetItem stylesheet control limitation

[alom]

I'm trying to add a white triangle in the selected row of a QTableWidget to the last table item.
currently i'm achieving this by setting a style sheet:

QTableView::item:selected
{
    color: rgb(222, 105, 89);
    background: rgb(43, 43, 43);
    outline: none;
    background-image:url('ui/table_item_selected.png');
    background-repeat: no-repeat;
    background-position: center right;
}

Unfortunately, this also adds the png file to the other items in the selected row.

I've tried to add a dynamic property to the last item using setProperty(), to use another stylesheet setting, but i get a:

AttributeError: 'PySide2.QtWidgets.QTableWidgetItem' object has no attribute 'setProperty'

I've also tried to use

image = QtGui.QPixmap('ui/main_nav_selected.png')
tb_item.setBackground(QtGui.QBrush(image))

but that repeats the image on the last cell and seems to conflicts with my style sheet for the selected row (as i'm using background: rgb(43, 43, 43);)

How could I isolate the last cell item and add the png only when the row is selected?

Any help greatly appreciated

[JonB]

@alom
setProperty is a method of QObject, https://doc.qt.io/qt-5/qobject.html#setProperty. QTableWidgetItem is not a QObject, so you can't use it on that.

[alom]

@JonB Thanks that makes sense

@Denni-0 I'm not sure I follow you.
How can we explicitly set the image swap on only the last cell? Keep in mind the table is expandable so i cant make an image the size of the row.

I saw that there is a setIcon() on the QTablweWidgetItem that places the image not tiled, but i cant seem to find a way to align it to the right :/

I have a working hacky solution atm... I added a new column on the right and replaced the item for a QLable. That way I can set a dynamic property on it. I then have a callback every time currentCellChanged() to manage the current selection and update the dynamic property of each rows QLable. I have to load the style sheet every table change though.... Any better solutions??