Thanks for the rapid response Jason.
I am trying to get to know how the design changes/colors occour. I this case I am using a color #de6ac1 to try to get a complete colorisation of the areas.
I must be going wrong somewhere as I dont seem to get the color complete fill in as expected.
I attach an image of the result modified to your instructions (I think)...
the site is at www.francoisbouttier.com