You will need to create a custom style, and then apply that style to the widget. To create a custom style, first get an instance of ttk.Style
, and then use the configure
method to derive a new style from an existing one. The following example creates a new style named "Red.TCheckbutton":
style = ttk.Style()
style.configure("Red.TCheckbutton", foreground="red")
Next, you simply associate this style with the widget when you want the color to change:
my_checkbutton.configure(style="Red.TCheckbutton")
The best resource for learning how to work with the ttk styles is tkdocs.com. Specifically, https://www.tkdocs.com/tutorial/styles.html.
Here's a complete working example:
import ttk
import Tkinter as tk
class ExampleApp(tk.Frame):
def __init__(self, *args, **kwargs):
tk.Frame.__init__(self, *args, **kwargs)
self.var1 = tk.StringVar()
self.var2 = tk.StringVar()
f1 = ttk.Frame(self)
red_button = ttk.Button(f1, text="Red", command=self.make_red)
default_button = ttk.Button(f1, text="Default", command=self.make_default)
red_button.pack(side="left")
default_button.pack(side="left")
f2 = ttk.Frame(self)
self.cb_one = ttk.Checkbutton(f2, text="Option 1", variable=self.var1,
onvalue=1, offvalue=0)
self.cb_two = ttk.Checkbutton(f2, text="Option 2", variable=self.var2,
onvalue=1, offvalue=0)
self.cb_one.pack(side="left")
self.cb_two.pack(side="left")
f1.pack(side="top", fill="x")
f2.pack(side="top", fill="x")
style = ttk.Style()
style.configure("Red.TCheckbutton", foreground="red")
def make_red(self):
self.cb_one.configure(style="Red.TCheckbutton")
self.cb_two.configure(style="Red.TCheckbutton")
def make_default(self):
self.cb_one.configure(style="TCheckbutton")
self.cb_two.configure(style="TCheckbutton")
if __name__ == "__main__":
root = tk.Tk()
ExampleApp(root).pack(fill="both", expand=True)
root.mainloop()
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