Enumeration Members
NAME
NAME: 1;
Really just a UI level of inheritance, where the shape data panel should show the ability for
you to enter a value under this name, and the name isn't editable. Because the default value
for missing data is already empty, there's no need to actually do much down here in the model
layer.
NONE
NONE: 0;
VALUE
VALUE: 2;
This is true inheritance, where the formula/value of the shape data is available on all
descendant elements. i.e. if a page has a VALUE-inheritable shape data entry, that appears on
every single Element on the page, including all groups and items inside those groups.