Note
For a downloaded SVG to be useful, it needs to be associated with
the correct font. One solution seems to be to install
NewGardinerSMP.ttf locally.
On Linux, the font is then included if, for example, the SVG is converted to a PDF image
by Inkscape as in:
inkscape myimage.svg --without-gui --export-filename=myimage.pdf
(This is despite error messages being generated in the process.)
The situation is likely to be similar on other platforms.