> On Aug 14, 2017, at 5:17 PM, Eli Zaretskii <eliz@gnu.org> wrote:
> 
>> From: Artemio Gonzalez Lopez <artemiog@mac.com>
>> Date: Mon, 14 Aug 2017 11:35:39 +0200
>> 
>> I've been using Emacs 25.2.1 (downloaded from emacsformacosx.com) with 
>> several developer betas of Mac OS 10.13. I had no problem until the 
>> latest (beta 5), which does not render properly the fringes and the 
>> header/mode lines in Emacs windows. More precisely, it renders them in 
>> solid black, which in particular makes it virtually impossible to read 
>> the text messages in the header/mode lines. I am attaching two png 
>> files, showing how a window is rendered now (Fig. 1) and how it should 
>> be rendered (Fig. 2). This is probably a bug in macos's CoreGraphics (in 
>> fact, I've filed a bug report to the effect). However, while the bug is 
>> fixed (I hope in the next beta release!), I thought perhaps there could 
>> be a way of manually setting the background color of the fringes and 
>> header/mode which is not overridden by macos. Any suggestion in this 
>> respect would be very welcome!
> 
> AFAIU, the problem manifests itself in the inability of Emacs to load
> the colors it wants to use.  So one possible workaround would be to
> find out which colors it _can_ load, and customize the 'fringe' face
> to use one of those colors.
> 
> To find which colors are available, use "M-x list-colors-display”.

Hi, Eli,

Thanks a lot for your suggestions. In fact, “M-x list-colors-display” produces the following baffling error message:

apply: Wrong number of arguments: max, 0

After getting this error, I checked the Messages buffer and found the following lines:

Unable to load color "grey75"
Unable to load color "gray75"
Unable to load color "dark red"
Unable to load color "gray75"
Unable to load color "gray50"
Unable to load color "gray75"
Unable to load color "gray50"
Unable to load color "gray75" [3 times]
Loading delsel...done
Loading paren...done
Loading /Users/artemio/.session...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Unable to load color "Firebrick"
Unable to load color "RoyalBlue3"
Unable to load color "dark slate blue"
Unable to load color "darkseagreen2"
Unable to load color "gray75" [2 times]
Unable to load color “gray50"

So it looks that after the newest developer beta Emacs has problems finding most (all?) colors. Does that make sense to you? Any fixes/workarounds that come to mind?

Thanks a lot,

Artemio


Artemio Gonzalez Lopez
artemiog@mac.com