* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
@ 2016-01-10 21:19 Clément Pit--Claudel
2016-01-11 18:56 ` Eli Zaretskii
2021-12-02 9:03 ` Lars Ingebrigtsen
0 siblings, 2 replies; 9+ messages in thread
From: Clément Pit--Claudel @ 2016-01-10 21:19 UTC (permalink / raw)
To: 22343
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Hi all,
This is a cute bug. Run the following two commands (in bash):
# Set Emacs.background in Xresources
$ xrdb <(echo "Emacs.background: #2e3436")
# Run Emacs with same background on default face
$ emacs -q --eval "(set-face-attribute 'default nil :background \"#2e3436\")"
On my machine, the two colors are not rendered the same. I've attached a screenshot. What essentially happens is that anywhere where text is drawn the background is indeed #2e3436, but on the rest of the frame it's #2d3335. Amusingly, these two colors have distinct RGB and HSL values, but their CMYK and HSB values are the same (or so says http://rgb.to/hex/2d3335 and http://rgb.to/hex/2e3436, at least).
The reason I came across this is that I use Emacs' tango-dark theme, which uses that background color. Since I didn't like Emacs popping up with a white background and immediately switching, I set the same background in my .Xresources.
To observe the bug more clearly, just take a screenshot and open it in your favourite image editor, then use the magic wand with a tolerance of 0 (see other screenshot). Or use the color picker.
What could cause this problem? A roundtripping issue with color conversions?
Clément.
In GNU Emacs 25.0.50.3 (x86_64-unknown-linux-gnu, GTK+ Version 3.10.8)
of 2016-01-08 built on clem-w50-mint
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^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-10 21:19 bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources Clément Pit--Claudel
@ 2016-01-11 18:56 ` Eli Zaretskii
2016-01-11 19:09 ` Clément Pit--Claudel
2021-12-02 9:03 ` Lars Ingebrigtsen
1 sibling, 1 reply; 9+ messages in thread
From: Eli Zaretskii @ 2016-01-11 18:56 UTC (permalink / raw)
To: Clément Pit--Claudel; +Cc: 22343
> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
> Date: Sun, 10 Jan 2016 16:19:50 -0500
>
> This is a cute bug. Run the following two commands (in bash):
>
> # Set Emacs.background in Xresources
> $ xrdb <(echo "Emacs.background: #2e3436")
> # Run Emacs with same background on default face
> $ emacs -q --eval "(set-face-attribute 'default nil :background \"#2e3436\")"
>
> On my machine, the two colors are not rendered the same. I've attached a screenshot. What essentially happens is that anywhere where text is drawn the background is indeed #2e3436, but on the rest of the frame it's #2d3335. Amusingly, these two colors have distinct RGB and HSL values, but their CMYK and HSB values are the same (or so says http://rgb.to/hex/2d3335 and http://rgb.to/hex/2e3436, at least).
>
> The reason I came across this is that I use Emacs' tango-dark theme, which uses that background color. Since I didn't like Emacs popping up with a white background and immediately switching, I set the same background in my .Xresources.
>
> To observe the bug more clearly, just take a screenshot and open it in your favourite image editor, then use the magic wand with a tolerance of 0 (see other screenshot). Or use the color picker.
>
> What could cause this problem? A roundtripping issue with color conversions?
Could this be the distant-background feature at work?
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-11 18:56 ` Eli Zaretskii
@ 2016-01-11 19:09 ` Clément Pit--Claudel
2016-01-11 19:14 ` Eli Zaretskii
0 siblings, 1 reply; 9+ messages in thread
From: Clément Pit--Claudel @ 2016-01-11 19:09 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 22343
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On 01/11/2016 01:56 PM, Eli Zaretskii wrote:
>> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
>> Date: Sun, 10 Jan 2016 16:19:50 -0500
>>
>> This is a cute bug. Run the following two commands (in bash):
>>
>> # Set Emacs.background in Xresources
>> $ xrdb <(echo "Emacs.background: #2e3436")
>> # Run Emacs with same background on default face
>> $ emacs -q --eval "(set-face-attribute 'default nil :background \"#2e3436\")"
>>
>> On my machine, the two colors are not rendered the same. I've attached a screenshot. What essentially happens is that anywhere where text is drawn the background is indeed #2e3436, but on the rest of the frame it's #2d3335. Amusingly, these two colors have distinct RGB and HSL values, but their CMYK and HSB values are the same (or so says http://rgb.to/hex/2d3335 and http://rgb.to/hex/2e3436, at least).
>>
>> The reason I came across this is that I use Emacs' tango-dark theme, which uses that background color. Since I didn't like Emacs popping up with a white background and immediately switching, I set the same background in my .Xresources.
>>
>> To observe the bug more clearly, just take a screenshot and open it in your favourite image editor, then use the magic wand with a tolerance of 0 (see other screenshot). Or use the color picker.
>>
>> What could cause this problem? A roundtripping issue with color conversions?
>
> Could this be the distant-background feature at work?
I don't know :) How can I check? I was not aware of the distant-background feature; I'm only familiar with distant-foreground.
Clément.
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^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-11 19:09 ` Clément Pit--Claudel
@ 2016-01-11 19:14 ` Eli Zaretskii
2016-01-12 2:20 ` Clément Pit--Claudel
0 siblings, 1 reply; 9+ messages in thread
From: Eli Zaretskii @ 2016-01-11 19:14 UTC (permalink / raw)
To: Clément Pit--Claudel; +Cc: 22343
> Cc: 22343@debbugs.gnu.org
> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
> Date: Mon, 11 Jan 2016 14:09:53 -0500
>
> > Could this be the distant-background feature at work?
>
> I don't know :) How can I check? I was not aware of the distant-background feature; I'm only familiar with distant-foreground.
I think I meant distant-foreground...
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-11 19:14 ` Eli Zaretskii
@ 2016-01-12 2:20 ` Clément Pit--Claudel
2016-01-12 16:46 ` Eli Zaretskii
0 siblings, 1 reply; 9+ messages in thread
From: Clément Pit--Claudel @ 2016-01-12 2:20 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 22343
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On 01/11/2016 02:14 PM, Eli Zaretskii wrote:
>> Cc: 22343@debbugs.gnu.org
>> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
>> Date: Mon, 11 Jan 2016 14:09:53 -0500
>>
>>> Could this be the distant-background feature at work?
>>
>> I don't know :) How can I check? I was not aware of the distant-background feature; I'm only familiar with distant-foreground.
>
> I think I meant distant-foreground...
I see. Is distant-forground supposed to change the background color? What can I do to test this hypothesis?
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^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-12 2:20 ` Clément Pit--Claudel
@ 2016-01-12 16:46 ` Eli Zaretskii
0 siblings, 0 replies; 9+ messages in thread
From: Eli Zaretskii @ 2016-01-12 16:46 UTC (permalink / raw)
To: Clément Pit--Claudel; +Cc: 22343
> Cc: 22343@debbugs.gnu.org
> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
> Date: Mon, 11 Jan 2016 21:20:25 -0500
>
> On 01/11/2016 02:14 PM, Eli Zaretskii wrote:
> >> Cc: 22343@debbugs.gnu.org
> >> From: Clément Pit--Claudel <clement.pitclaudel@live.com>
> >> Date: Mon, 11 Jan 2016 14:09:53 -0500
> >>
> >>> Could this be the distant-background feature at work?
> >>
> >> I don't know :) How can I check? I was not aware of the distant-background feature; I'm only familiar with distant-foreground.
> >
> > I think I meant distant-foreground...
>
> I see. Is distant-forground supposed to change the background color? What can I do to test this hypothesis?
No, I think I just got confused. Ignore me.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2016-01-10 21:19 bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources Clément Pit--Claudel
2016-01-11 18:56 ` Eli Zaretskii
@ 2021-12-02 9:03 ` Lars Ingebrigtsen
2021-12-03 4:29 ` Clément Pit-Claudel
1 sibling, 1 reply; 9+ messages in thread
From: Lars Ingebrigtsen @ 2021-12-02 9:03 UTC (permalink / raw)
To: Clément Pit--Claudel; +Cc: 22343
Clément Pit--Claudel <clement.pitclaudel@live.com> writes:
> This is a cute bug. Run the following two commands (in bash):
>
> # Set Emacs.background in Xresources
> $ xrdb <(echo "Emacs.background: #2e3436")
> # Run Emacs with same background on default face
> $ emacs -q --eval "(set-face-attribute 'default nil :background \"#2e3436\")"
>
> On my machine, the two colors are not rendered the same. I've attached
> a screenshot. What essentially happens is that anywhere where text is
> drawn the background is indeed #2e3436, but on the rest of the frame
> it's #2d3335.
(I'm going through old bug reports that unfortunately weren't resolved
at the time.)
I'm unable to reproduce this in Emacs 28 on Debian/bookworm. Are you
still seeing this issue in more recent versions of Emacs?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2021-12-02 9:03 ` Lars Ingebrigtsen
@ 2021-12-03 4:29 ` Clément Pit-Claudel
2021-12-03 16:27 ` Lars Ingebrigtsen
0 siblings, 1 reply; 9+ messages in thread
From: Clément Pit-Claudel @ 2021-12-03 4:29 UTC (permalink / raw)
To: Lars Ingebrigtsen; +Cc: 22343
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I cannot reproduce this issue any more.
On 12/2/21 4:03 AM, Lars Ingebrigtsen wrote:
> Clément Pit--Claudel <clement.pitclaudel@live.com> writes:
>
>> This is a cute bug. Run the following two commands (in bash):
>>
>> # Set Emacs.background in Xresources
>> $ xrdb <(echo "Emacs.background: #2e3436")
>> # Run Emacs with same background on default face
>> $ emacs -q --eval "(set-face-attribute 'default nil :background \"#2e3436\")"
>>
>> On my machine, the two colors are not rendered the same. I've attached
>> a screenshot. What essentially happens is that anywhere where text is
>> drawn the background is indeed #2e3436, but on the rest of the frame
>> it's #2d3335.
>
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
>
> I'm unable to reproduce this in Emacs 28 on Debian/bookworm. Are you
> still seeing this issue in more recent versions of Emacs?
>
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^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources
2021-12-03 4:29 ` Clément Pit-Claudel
@ 2021-12-03 16:27 ` Lars Ingebrigtsen
0 siblings, 0 replies; 9+ messages in thread
From: Lars Ingebrigtsen @ 2021-12-03 16:27 UTC (permalink / raw)
To: Clément Pit-Claudel; +Cc: 22343
Clément Pit-Claudel <clement.pitclaudel@live.com> writes:
> I cannot reproduce this issue any more.
Thanks for checking; I'm closing this bug report, then.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2021-12-03 16:27 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-01-10 21:19 bug#22343: 25.0.50; Incorrect rounding (?) when loading the Emacs.background attribute from Xresources Clément Pit--Claudel
2016-01-11 18:56 ` Eli Zaretskii
2016-01-11 19:09 ` Clément Pit--Claudel
2016-01-11 19:14 ` Eli Zaretskii
2016-01-12 2:20 ` Clément Pit--Claudel
2016-01-12 16:46 ` Eli Zaretskii
2021-12-02 9:03 ` Lars Ingebrigtsen
2021-12-03 4:29 ` Clément Pit-Claudel
2021-12-03 16:27 ` Lars Ingebrigtsen
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