How to change the background color of a Treeview

Question

I'm here to ask you how to change background of a treeview, I tried that

ttk.Style().configure("Treeview", background="#383838")

It's work perfectly just for the cell, but the rest of the Treeview stay white.

I tried to change the background of the window, the frame too, but it does not work.

So, how to do that, i'm sure that you know.

Bye and thanks in advance :)

The code

from tkinter import *
from tkinter import ttk

p=Tk()

separator = PanedWindow(p,bd=0,bg="#202322",sashwidth=2)

separator.pack(fill=BOTH, expand=1)

_frame = Frame(p,bg="#383838")

t=ttk.Treeview(_frame)

t["columns"]=("first","second")
t.column("first",anchor="center" )
t.column("second")
t.heading("first",text="first column")
t.heading("second",text="second column")
t.insert("",0,"dir1",text="directory 1")
t.insert("dir1","end","dir 1",text="file 1 1",values=("file 1 A","file 1 B"))
id=t.insert("","end","dir2",text="directory 2")
t.insert("dir2","end",text="dir 2",values=("file 2 A","file 2 B"))
t.insert(id,"end",text="dir 3",values=("val 1 ","val 2"))
t.insert("",0,text="first line",values=("first line 1","first line 2"))
t.tag_configure("ttk",foreground="black")

ysb = ttk.Scrollbar(orient=VERTICAL, command= t.yview)
xsb = ttk.Scrollbar(orient=HORIZONTAL, command= t.xview)
t['yscroll'] = ysb.set
t['xscroll'] = xsb.set

ttk.Style().configure("Treeview", background="#383838",foreground="white")
p.configure(background='black')

t.grid(in_=_frame, row=0, column=0, sticky=NSEW)
ysb.grid(in_=_frame, row=0, column=1, sticky=NS)
xsb.grid(in_=_frame, row=1, column=0, sticky=EW)
_frame.rowconfigure(0, weight=1)
_frame.columnconfigure(0, weight=1)

separator.add(_frame)

w = Text(separator)
separator.add(w)

p.mainloop()

Answer 1

The missing option is fieldbackground which I only found by accident in an example. So if you add it to the style declaration

ttk.Style().configure("Treeview", background="#383838", 
 foreground="white", fieldbackground="red")

it works as you'd like. I used red to make the change very visible; obviously you'll want to change that for greater color harmony.

Answer 2

if flag == False:
    tree.insert('', 'end', values=(valx[0], valx[1], valx[2], valx[3]),tags=('odd',))
else:
    tree.insert('', 'end', values=(valx[0], valx[1], valx[2], valx[3]),tags=('even',))

tree.tag_configure('odd', background='#008001')
tree.tag_configure('even', background='#FFFF00')