Top down approach

The task:
Make a function to fade from the current bgColor to a new user-specified colour.

Sub task:
Get user input
Sub task:
Fade from current colour to new colour

Sub task:
Convert current bgColor to decimal
Sub task:
Calculate steps between current colour and new colour
Sub task:
Fade to from old to new colours

The task: Make a function to fade from the current bgColor to a new user-specified colour.
Sub task: Get user input	Sub task: Fade from current colour to new colour
	Sub task: Convert current bgColor to decimal	Sub task: Calculate steps between current colour and new colour	Sub task: Fade to from old to new colours