tkinter ttk.Treeview: changing background colour of single item when selected

[John O'Hagan]

On Mon, 2023-02-06 at 10:19 -0800, stefalem wrote:
> Il giorno sabato 4 febbraio 2023 alle 11:43:29 UTC+1 John O'Hagan ha
> scritto:
> ...
> 
> > Is there another way to do what I want? 
> 
> from tkinter import *
> from tkinter.ttk import *
> 
> root = Tk()
> t = Treeview(root)
> 
> t.insert('', 0, iid='item1', text='item1')
> t.insert('', 1, text='item2')
> t.tag_configure('flashtag', background='red')
> t.pack()
>   
> def flash():
>  tags = t.item('item1', 'tags')
>  t.item('item1', tags='' if tags else 'flashtag')
>  t.after(500, flash)
>  itemselected = t.selection()
>  for x in itemselected:
>   if (x == 'item1'):
>    t.selection_remove(t.get_children())
> 
> flash()

Thank you for your reply. Unfortunately that's not quite what I'm
after, because it unselects the flashing item.

My goal was to be able to change the colour of an individual item
regardless of whether it is selected or not. To do that, it is
necessary to be able to change the colour of an individual selected
item, without changing the selection or changing the colour of other
selected items. It seems this isn't possible.

Thanks

John