Re: A bug set-face-background

[Jan Djärv]

Hello.

7 nov 2013 kl. 16:55 skrev Eli Zaretskii <address@hidden>:

>> From: Jan Djärv <address@hidden>
>> Date: Thu, 7 Nov 2013 07:00:43 +0100
>> Cc: Michael Heerdegen <address@hidden>,
>>      "address@hidden devel" <address@hidden>
>> 
>> Hello.
>> 
>> 7 nov 2013 kl. 02:18 skrev Kazu Yamamoto (山本和彦) <address@hidden>:
>> 
>>> Hi Michael,
>>> 
>>>> I experience that since some time, Emacs display "overrides" faces that
>>>> differ only slightly from the background and displays them in black or
>>>> white instead, to keep things readable.  What you see is presumably a
>>>> symptom of this behavior.
>>> 
>>> I need to make things unreadable because I'm using this code for
>>> presentation. Unnecessary things for presentation should be invisible.
>>> 
>> 
>> Use invisible text property?
> 
> I think customizing the corresponding face(s) should also work, no?

Well, yes there is a bug here.  But I was thinking of marking text that has 
foreground == background.  The region face may have distant-foreground, and 
thus it becomes visible.
Come to think of it, marking such text would make it visible anyway if region 
face only defines background.  So text is not properly hidden IMHO.

        Jan D.