Re: High Contrast Installer

On 2023-04-22 14:07, Alfonso Sabato Siciliano wrote:
> The wiki page "Base system accessibility wishlist" [0] has "Check the
> installer text and background colors provide enough contrast (including 
> as
> shades of grey) and or offer options to change them.".
> 
> bsddialog provides already a black and white theme.
> Default theme:
> $ bsddialog --yesno "Default Theme" 0 0
> Black and White theme:
> $ bsddialog --theme blackwhite --yesno "Black and White Theme" 0 0

A useful resource for contrast requirements is 
https://webaim.org/articles/contrast/. (Its focus is on webpages, but it 
stands to reason that the minimum requirements and the example contrasts 
are applicable to all uses of text.) To check what contrast a color pair 
(foreground/background) gives users, 
https://webaim.org/resources/contrastchecker/ is an option. (I just 
added these two to https://wiki.freebsd.org/Accessibility/Resources.)

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