Apparently, there are Flex objects like buttons or trees that
have the ability to include an icon with the text, but this icon
must be embedded in the swf file, i.e. it's not possible to call a
URL for the icon object during runtime.
I read a blog by Ben Stucki about this issue and he came up
with a complex solution that would allow to pass a Class reference
to the icon "property" of the Flex component.
Sadly, this does not seem to work with trees. Although
there's a possibility to have a dedicated "iconFunction", I don't
see a possibility to pass back an object that will actually display
my at-run-time-via-source-URL-referenced icon (I've got an XML tree
structure of objects with an "image" property that holds the URL of
the image to be displayed with the object).
Is there no way to include icons in a tree that are defined