Let's look at an example:
In this example, the colours are
assigned specific positions around
the circle by the start and end
percentages. For instance, the colour
red spans from 0% to 25%,
corresponding to the first 90 degrees
of the 360-degree circle.
Similarly, blue starts at 25% and
extends till 50%, covering the circle
from 90 to 180 degrees, and so on.
This ensures that there is no mixing
or overlapping of colours.