Control diagram formatting options via custom css

the themes support is nice but the diagrams still aren't very good for putting into a word of PowerPoint documents. what would be ideal is to publish a css theme that can be applied at the diagram level. this theme would allow you to do things like control the font color and size and dispaly of the table name, columns, datypes and relationships and optionally color based on data type, PK FK and other attributes. this would allow me to create a diagram that is suitable for many different uses.