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README: re-write font section

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Daniel Eklöf 2019-08-29 23:00:49 +02:00
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README.md
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@ -47,17 +47,18 @@ In addition to the dev variant of the packages above, you need:
## Fonts
**foot** supports all fonts that can be loaded by freetype, including
**bitmap** fonts and **color emoji** fonts.
**foot** supports all fonts that can be loaded by _freetype_,
including **bitmap** fonts and **color emoji** fonts.
Foot uses its own font fallback mechanism, rather than relying on
fontconfig's fallback. This is because fontconfig is quite bad at
selecting fallback fonts suitable for a terminal (i.e. monospaced
fonts).
Foot uses _fontconfig_ to locate and configure the font(s) to
use. Since fontconfig's fallback mechanism is imperfect, especially
for monospace fonts (it doesn't prefer monospace fonts even though the
requested font is one), foot allows you, the user, to configure the
fallback fonts to use.
Instead, foot allows you to specify a font fallback list, where _each_
font can be configured independently (for example, you can configure
the size for each font individually).
This also means you can configure _each_ fallback font individually;
you want _that_ fallback font to use _this_ size, and you want that
_other_ fallback font to be _italic_? No problem!
If a glyph cannot be found in _any_ of the user configured fallback
fonts, _then_ fontconfig's list is used.