If I have a set of Patterns and Symbols which I re-use for multiple drawings in a project, what would be the best method to store them?
I'm thinking possibly saving my svg:defs into their own files (based on usage target) then importing to "images" into each SVG as they are needed
that way I would only need to define them once
Taking the above approach brings up my follow-up query ...
When saving SVGs for image import purposes, what data do I need to keep?
I assume namespaces and the like would not be needed as they should be taken from the parent image.
Since the SVG spec seems to have no notion of layers (as depicted in UIs), presumably the "Layer 1" group could be omitted
If there are no visible components (just defs), do I need to set a viewBox size?
... If I need the viewBox, do I need width & height, or could that be worked around with preserveAspectRatio?
I do have more questions, but I think that will do for the moment

From what I have seen so far, there doesn't seem to be an "export for import" template