This information is also used to perform font substitution.
2.
:The text thickening is a font substitution problem, the same one as a couple of posts below.
3.
This feature is not widely supported for font substitution, e . g . in OpenOffice . org or Abiword.
4.
Nevertheless, font substitution may be critical to scripts not well supported by a large font inventory having the required Unicode range.
5.
In 1996, during the W3C's draft process for CSS1, Hewlett Packard proposed a PANOSE syntax extension for font substitution.
6.
Examples of systems that perform font substitution include fontconfig, Adobe Reader, Unidrv, Microsoft Word ( since Word 2002 ) or OpenOffice . org.
7.
Not all systems that claim to offer font substitution are able to substitute for missing characters; some are only capable of substituting for missing fonts.
8.
It was previously used to ensure proper font rendering of accented Greek ( polytonic ) text in browsers that did not handle automatic font substitution well.
9.
The interrobang can be used in some word processors with the alt code when working in a font that supports the interrobang, or using an operating system that performs font substitution.
10.
When font substitution is being used to find a replacement for an unavailable character, it can lead to inconsistent visual appearance as part of a word or sentence is displayed in one font and another part is displayed in the substituted font.