So, let say I have defined Class1 and Class2 for my products. Those classes becom Content types with their own set of fields. And for example Image field weight I could see inside node_field_instance table. Is that weight reflected somewhere inside catalog? I could also see that for some Class fields I have predefined title with weight=-5, body_filter=-4, taxonomy=-3, base=-1. Are they in some other table or statically generated for Class->Manage fields form?