+* file properties - title, parent etc..
+
+-----------------------------------------------------
+
+Thoughts...
+* Widget definition files.. (to replace our 'Usage.txt' files)
+-> defaults { ... }
+-> onAdd(name_of_parent, cfg) { modifies defaults.. }
+-> validParents : [ .... ]
+-> validChildren???: [ .... ]
+
+* how to handle stuff like GtkTable.. -
+ - needs cols,rows in constructor.
+ - child properties do not appear to work? -- investigate?