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bug#41544: 26.3; Possible incorrect results from color-distance
From: |
Mattias Engdegård |
Subject: |
bug#41544: 26.3; Possible incorrect results from color-distance |
Date: |
Fri, 21 Aug 2020 13:32:14 +0200 |
20 aug. 2020 kl. 15.08 skrev Lars Ingebrigtsen <larsi@gnus.org>:
> Mattias?
I don't want to revive this discussion and consider the matter settled, but
since you asked:
Suppose we add standard-colour-darkness-predicate, say, with color-dark-p being
the default and (r+b+g)/3<0.6 the 'traditional' option (or the default, if you
prefer). How would the effects of that choice be explained to the user?
A difference is only visible when:
1. a face sensitive to the background mode is used (many standard faces are),
and
2. a background colour used that is judged differently by the available
predicates
Most reasonable backgrounds are either too light or too dark to pass the latter
criterion, but people's idea of what is reasonable varies. For instance,
black-on-green text is somewhat readable, but
emacs -bg green -fg black
will give mostly bad default faces (for instance, the minibuffer prompt is
almost invisible). With color-dark-p it becomes workable (attached diff).
Whether this is reason enough to add a defcustom is something I won't comment
on. I doubt anyone will change it, whatever the default would be.
dark.diff
Description: Binary data
- bug#41544: 26.3; Possible incorrect results from color-distance, (continued)
- bug#41544: 26.3; Possible incorrect results from color-distance, Eli Zaretskii, 2020/08/18
- bug#41544: 26.3; Possible incorrect results from color-distance, Lars Ingebrigtsen, 2020/08/19
- bug#41544: 26.3; Possible incorrect results from color-distance, Eli Zaretskii, 2020/08/19
- bug#41544: 26.3; Possible incorrect results from color-distance, Lars Ingebrigtsen, 2020/08/19
- bug#41544: 26.3; Possible incorrect results from color-distance, Eli Zaretskii, 2020/08/19
- bug#41544: 26.3; Possible incorrect results from color-distance, Lars Ingebrigtsen, 2020/08/20
- bug#41544: 26.3; Possible incorrect results from color-distance,
Mattias Engdegård <=
- bug#41544: 26.3; Possible incorrect results from color-distance, Lars Ingebrigtsen, 2020/08/22