How to use the canvas widget

This recipe shows how to add dramatic color effects to our GUI by using the tkinter canvas widget.

Getting ready

We will improve our previous code and the look of our GUI by adding some more colors to it.

How to do it...

First, we will create a third tab in our GUI in order to isolate our new code.

Here is the code to create the new third tab:

# Tab Control introduced here --------------------------------
tabControl = ttk.Notebook(win)          # Create Tab Control

tab1 = ttk.Frame(tabControl)            # Create a tab 
tabControl.add(tab1, text='Tab 1')      # Add the tab

tab2 = ttk.Frame(tabControl)            # Add a second tab
tabControl.add(tab2, text='Tab 2')      # Make second tab visible

tab3 = ttk.Frame(tabControl)            # Add a third tab
tabControl.add(tab3, text='Tab 3')      # Make second tab visible

tabControl.pack(expand=1, fill="both")  # Pack to make visible
# ~ Tab Control introduced here -------------------------------

Next, we use another...