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Re: Tick Reduction

From: Lars Ingebrigtsen
Subject: Re: Tick Reduction
Date: Sat, 20 Nov 2021 10:26:38 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

> Emacs knows that for each character it displays.  (Assuming I
> understand what "x-height of a character" means in this context.)  We
> get the full metrics of the character from the font, and use that for
> layout.

The x-height is literally the height of the lower-case x character.  😀
But it's used as a shorthand to say something about the characteristics
of a font -- the x-height is what matters most for legibility, and the
ascenders (in characters like "b") and descenders (in characters like
"g") are separate things.

Fonts with equal heights but different x-heights mix badly visually.

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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