Drawing irregular lines and super shapes

Let's now add the capability to draw irregular or continuous free-flowing lines. We will also add the ability to draw a variety of interesting shapes on the drawing canvas, as shown here:

As a reminder, all our buttons are linked to dynamically call functions defined in our tool_bar_functions tuple. Furthermore, we can specify unique options for a given function by adding the _options string to the function name.

Drawing irregular lines

To add the capability to draw irregular lines, we just need to define the method named draw_irregular_line. To specify options that appear in the top bar, we need to define the method named draw_irregular_line_options.

We define the draw_irregular_line...