Thanks for that reference link, I had lost it.
You're welcome. In scanning through the thread, I must have missed the above note yesterday. In order not to seem to side with the one or with the other, the formal situation is as follows.
Colour content is defined by the Commission internationale de l'Élairage (cie.co.at) and the properties that play a part in practical parametrisation of the intelligent colour-colourant drawing model are defined by the International Color Consortium (color.org).
The International Color Consortium defines both the practical parametrisation of the reference multidimensional colour connection space and the public indices in the file format of the intelligent colour-colourant drawing model i.e. the ICC Specification is a file format specification.
Character content is defined by the International Standards Organisation, Joint Technical Committee 1, Standing Committee 2, Working Group 2 (anubis.dkuug.dk/jtc1/sc2/wg2/) and the properties that play a part in practical parametrisation are defined by the Unicode Consortium (unicode.org).
The Unicode Consortium defines the practical parametrisation of the reference multidimensional character connection space including the compositional properties of characters and the representation of the reference space (16-bit planes 0 to 16 with 65536 positions per plane).
Unlike the International Color Consortium, the Unicode Consortium does not define a file format specification. ISO-IEC Technical Report 15285 states on page 23 that in the Unicode model character codes are public and font-independent while glyph codes are private and font-dependent.
This excludes Adobe PostScript Type 1, but this does not exclude the composition models that followed beginning with foundation of TrueType Specification 1.0 of 1990. Thus it neither excludes Apple's additional tags nor Microsoft's additional tags.
Technically, the ICC file format and the TrueType file format (SFNT Spline Font file format) are termed tagged file formats. The term is used in the sense that it is possible to tag additional tables for non-default processing onto the default tables for basic public processing.
When non-default tables are tagged onto the default tables, applications process only the default tables and ignore the non-default tables unless those applications are primed for processing the particular non-default tables.
Microsoft Corporation has left the International Color Consortium. Apple Incorporated and Microsoft Corporation are both members of the Unicode Consortium and both support one another's additions to the default tables of the SFNT Spline Font file format in presently available products.
Formally, since the Unicode Consortium does not specify a file format, and since the two members have taken steps to support one another's additions to the default tables of the shared SFNT Spline Font file format, the free font Europa has to be available with the default tables, with Apple's additional tables and with Microsoft's additional tables.
If Apple clarifies that it intends to discontinue publishing of the TrueType Specification and processing of the Apple's additional tables, then it is politically possible to limit the free font Europa to the default tags and Microsoft's additional tags, but less Apple's additional tags. Governance in graphic information processing is by US consortia. Formalities should be preserved by the EU as customer while at the same time the EU should stand on the concept that the raw resource of information society is information which should flow unconstrained through composition models, separation mdoels, and document models.
/hh
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