IOF Control Descriptions for orienteering in SVG format, with corresponding names in various languages.
In the symbols directory, you will find SVG images of IOF's control descriptions, named according to this standard. You can also find lang.json which contains the names of these symbols in various languages.
All data in this repository has been extracted from Purple Pen, a free course setting application for orienteering. More specifically, the symbol information has been extracted from symbols.xml, which contains the same information in an internal format.
Licensing of this data is a bit unclear. The best I can find is
Purple Pen is completely free software.
and
Purple Pen is open source software.
(Quoted from Purple Pen's homepage.) I interpret this as the data is free to use.
If/when Purple Pen update the symbols, you can run the script under scripts to extract the symbols and language:
cd scripts
npm install
node symbols.js [PATH TO symbols.xml] [OUTPUT PATH]