IccXML 0.9.0 released
Max Derhak from ONYX released an alpha version of IccXML, an extension of IccProfLib from SampleIcc. IccXML provides tools for conversion of ICC profiles to XML files and backwards conversion of XML to ICC.
Thanks to these tools, IccToXML and IccFromXML, you can edit color profiles data in a text editor. Furthermore, the XML schema used by IccXML allows using external data via standard referencing.
Just in case, SampleIcc is open source project by International Color Consoirtium (ICC). You can download IccXML here.