- Notes:
- Adjust group titles in order to reduce text overflow in PNG
previews of Wikimedia Commons servers (due to said servers lacking
`osifont` font).
- Put each symbol into its own SVG group. Put each accompanying text
in its own SVG group. Put each set of SVG groups into a layer
according to ISO 10628-2 group.
- Update each Legend to address registration numbers that fall
outside the provided patterns.
- Adjust font sizes in Title and Legend to reduce clipping when
rendered without `osifont` font.
- Fix some minor spelling errors.