A Private Use Area code point for a character for use in chromatic font research.

This document is about a Private Use Area code point for a character for use in chromatic font research.

This code point is made as a suggestion in case anyone is researching with chromatic font technology and would like a suggestion as to a character to include in an experimental font for use in conjunction with an experimental font rendering software package so as to demonstrate that the various parts of an individual glyph may be coloured in different colours using that experimental font in conjunction with that experimental font rendering software package.

U+E7C2 HOLLY LEAF (GREEN) SURROUNDED BY FIVE BERRIES (RED)

William Overington

2 July 2002

Supplement of 29 July 2002

In order to help facilitate research, four additional characters are defined as monochrome characters. The intention is that within a font the shape and position of the contour for the holly leaf in U+E7C3 is the same as the shape and position of the contour for the holly leaf in U+E7C2, that the shapes and positions of the contours for the berries in U+E7C4 are the same as the shapes and positions of the contours for the berries in U+E7C2, and that the shapes of the contours for the berries in U+E7C5 are the same shapes as the contours for the berries in U+E7C2 yet are positioned to the left by a distance such that they are properly placed around the holly leaf of U+E7C3 when a character U+E7C3 character is followed by a U+E7C5 character. The U+E7C6 character is a monochrome version of the U+E7C2 character.

U+E7C3 HOLLY LEAF WITHOUT BERRIES

U+E7C4 FIVE BERRIES WITHOUT HOLLY LEAF

U+E7C5 FIVE BERRIES WITHOUT HOLLY LEAF PLACED LEFTWISE FOR ALIGNMENT WITH U+E7C3

U+E7C6 HOLLY LEAF SURROUNDED BY FIVE BERRIES

Please note that these characters are defined in the early days of chromatic font research so as to provide a hopefully comprehensive set of characters for research. If chromatic fonts are implemented and put into use it will probably not be necessary to have five code points for each chromatic character. However, at present, the aim of this collection of code points is to provide support for research, including use of TrueType fonts with such packages as Microsoft Word and Microsoft WordPad where use of U+E7C3 in green followed by U+E7C5 in red is very effective as to an on-screen result, using just an experimental, though ordinary format, TrueType font. However, the hope is that eventually a chromatic font format will be produced by people who know about font file format structures, so that entering a U+E7C2 character will produce a two-colour result.

Anyone implementing the above set of characters in an ordinary TrueType font may choose to implement U+E7C2 as monochrome, that is, exactly the same as U+E7C6, as that is better than leaving the glyph as blank and will give guidance as to the intended look.

William Overington

29 July 2002