Red Area Home is a third level node as are a load of other pages beneath Red Area (the same applies to Yellow Area) - we want all of these nodes to appear at the same level.
The Breadcrumb includes Red Area at its root (by changing the settings for the breadcrumb) - or Yellow Area of you follow a top menu link to the Yellow Area.
By Clicking Red Area in the Breadcrumb you end up one level above the Red Home so you have the problem of 2 Red Area "home pages".
SOLUTION:
Use URL translation to redirect requests for Red Area to Red Area Home as described here:
