TTK Combobox does not style properly

Question

I have been attempting to create a combobox that fits in with the rest of my UI; however the widget still looks like the default:

In my attempts, I have tried to "brute-force" the widget into adapting to the color with the following code but to no avail:

self.root = tk.Tk() # Parent Container

# Other UI elements declared

self.themeSel_combo_theme.configure(
    "TCombobox",
    background=self.theme.get('bg'),
    foreground=self.theme.get('bg'),
    fieldbackground=self.theme.get('bg'),
    darkcolor=self.theme.get('bg'),
    lightcolor=self.theme.get('bg'),
    selectbackground=self.theme.get('bg'),
    selectforeground=self.theme.get('bg'),
    bordercolor=self.theme.get('bg'),
    insertcolor=self.theme.get('bg'),
    insertwidth=self.theme.get('bg'), # It uses a color, not a size value
    arrowcolor=self.theme.get('bg')
)

self.themeSel_combo = ttk.Combobox(self.quickTheme_cont, style="TCombobox")

The code above was made using this website as a reference.

Note that self.theme.get('bg') returns #202020

Are you sure the all those styles of combobox can be changed? — Delrius Euphoria, Feb 14 '21 at 18:54
@CoolCloud, yes; as I said the reference I used said that all of those are valid options for ttk::combobox widgets — Geetansh G, Feb 14 '21 at 20:40
Apologies for the inconvenience; after some research, I've found that using ```tk.Tk()``` somehow makes it so that ```ttk``` objects do not style properly; thus I had to change it to ```tk.Toplevel()``` — Geetansh G, Feb 16 '21 at 02:17

score 0 · Accepted Answer · answered Feb 16 '21 at 02:19

Apologies for the inconvenience; I've decided to keep this thread in case someone else needs help with this. It turns out that using the following command for creating the parent container makes it so that ttk objects do not style properly:

self.root = tk.Tk()

Changing the aforementioned command to the following fixed the issue I was having:

self.root = tk.Toplevel()

TTK Combobox does not style properly

1 Answers1