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bug#25890: `color-values` gives wrong value

From: address@hidden
Subject: bug#25890: `color-values` gives wrong value
Date: Fri, 10 Mar 2017 08:13:15 +0000

2017-03-10 16:28 GMT+09:00 Eli Zaretskii <eliz@gnu.org>:
> > From: "mail@yo.eki.do" <mail@yo.eki.do>
> > Date: Fri, 10 Mar 2017 05:23:35 +0000
> >
> > I'd like to ask a question regarding to the commit 7b00e956.
> > I quickly scanned the discussion here, but couldn't find any good reason 
> > for changing the behavior of
> > color-rgb-to-hex function without keeping backward compatibility;
> > why the default value for digits-per-component is 4, not 2?
> The default was changed to 4 to match how Emacs does color
> calculations internally.  Using 2 will produce subtle bugs, like that
> one which prompted that change.

Thanks for clear explanation.
So that basically means this destructive change was inevitable.
I guess you are right.

> > This change actually had impact on several packages including mode-icons, 
> > and IMO keeping the original
> > behavior is a better option.
> I'm sorry to hear that, but you could still use the optional argument
> to get back the original behavior, right?

Hopefully. Actually I'm not qute certain how many packages will be affected.

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