Why the echo "\033]20;;100x100+1000+1000\a" command doesn't clear the 
background? It worked in the latest release (2016), but now doesn't work. How 
can I clear the background and use the true transparency configured in my 
xresources? I use this script to view images in the urxvt:  
https://github.com/GasparVardanyan/imview/blob/master/imview  and this config:  
https://github.com/GasparVardanyan/dotfiles/blob/master/.Xresources  
Also, do you have any plans to apply a feature in urxvt to view images?


>Wednesday, September 18, 2019 2:00 PM +04:00 from 
>rxvt-unicode-requ...@lists.schmorp.de:
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>Today's Topics:
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>   1. truecolour and background image issues (?????? ?????????)
>   2. Re: truecolour and background image issues (Marc Lehmann)
>   3. Re: truecolour and background image issues (Marc Lehmann)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Tue, 17 Sep 2019 14:11:27 +0300
>From: ?????? ?????????  < gaspar.vardanyan.mail...@gmail.com >
>To: rxvt-unicode < rxvt-unicode@lists.schmorp.de >
>Subject: truecolour and background image issues
>Message-ID: < 1568718687.685573...@f433.i.mail.ru >
>Content-Type: text/plain; charset="utf-8"
>
>I think some colors doesn't correctly work in urxvt:?  
>https://imgur.com/a/ktyOGmc ?(24-bit-color script:?  
>https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24-bit-color.sh
> )
>And the background image doesn't work in the latest cvs build. I have used 
>this script:?  https://github.com/GasparVardanyan/imview/blob/master/imview 
>?in the last release (2016-01-23) to view images in urxvt, but in the last cvs 
>build it doesn't work. I have configured urxvt's installer with?--prefix=/usr 
>--enable-everything --enable-256-color options, and there is the my xresources 
>config:?  https://github.com/GasparVardanyan/dotfiles/blob/master/.Xresources
>
>
>-- 
>?????? ?????????
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>------------------------------
>
>Message: 2
>Date: Tue, 17 Sep 2019 19:01:54 +0200
>From: Marc Lehmann < schm...@schmorp.de >
>To: ?????? ?????????  < gaspar.vardanyan.mail...@gmail.com >
>Cc: rxvt-unicode < rxvt-unicode@lists.schmorp.de >
>Subject: Re: truecolour and background image issues
>Message-ID: < 20190917170154.ga1...@schmorp.de >
>Content-Type: text/plain; charset=utf-8
>
>On Tue, Sep 17, 2019 at 02:11:27PM +0300, ?????? ????????? < 
>gaspar.vardanyan.mail...@gmail.com > wrote:
>> I think some colors doesn't correctly work in urxvt:?  
>> https://imgur.com/a/ktyOGmc ?(24-bit-color script:?  
>> https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24-bit-color.sh
>>  )
>
>It probably does - while urxvt supports 24 bit colour selection, it
>doesn't support displaying more than the configured number of colours at
>the same time (88/256 + some).
>
>So, as a tool to display colour swathes urxvt will indeed not work, but
>this is not considered to be a deficiency, nor does urxvt target this kind
>of application.
>
>What urxvt should (and probably does) support is application colour
>palettes, e.g. custom colours in vim.
>
>> And the background image doesn't work in the latest cvs build. I have used 
>> this script:?  https://github.com/GasparVardanyan/imview/blob/master/imview 
>> ?in the last release (2016-01-23) to view images in urxvt, but in the last 
>> cvs build it doesn't work. I have configured urxvt's installer 
>> with?--prefix=/usr --enable-everything --enable-256-color options, and there 
>> is the my xresources config:?  
>> https://github.com/GasparVardanyan/dotfiles/blob/master/.Xresources
>
>That might be an actual bug, I'll have a look into this.
>
>Thanks for reporting these issues.
>
>-- 
>                The choice of a       Deliantra, the free code+content MORPG
>      -----==-     _GNU_  http://www.deliantra.net
>      ----==-- _       generation
>      ---==---(_)__  __ ____  __      Marc Lehmann
>      --==---/ / _ \/ // /\ \/ /  schm...@schmorp.de
>      -=====/_/_//_/\_,_/ /_/\_\
>
>
>
>------------------------------
>
>Message: 3
>Date: Tue, 17 Sep 2019 19:19:15 +0200
>From: Marc Lehmann < schm...@schmorp.de >
>To: ?????? ?????????  < gaspar.vardanyan.mail...@gmail.com >
>Cc: rxvt-unicode < rxvt-unicode@lists.schmorp.de >
>Subject: Re: truecolour and background image issues
>Message-ID: < 20190917171915.ga2...@schmorp.de >
>Content-Type: text/plain; charset=utf-8
>
>On Tue, Sep 17, 2019 at 02:11:27PM +0300, ?????? ????????? < 
>gaspar.vardanyan.mail...@gmail.com > wrote:
>> > And the background image doesn't work in the latest cvs build. I have used 
>> > this script:?  
>> > https://github.com/GasparVardanyan/imview/blob/master/imview ?in the last 
>> > release (2016-01-23) to view images in urxvt, but in the last cvs build it 
>> > doesn't work. I have configured urxvt's installer with?--prefix=/usr 
>> > --enable-everything --enable-256-color options, and there is the my 
>> > xresources config:?  
>> > https://github.com/GasparVardanyan/dotfiles/blob/master/.Xresources
>> 
>> That might be an actual bug, I'll have a look into this.
>
>There are actually two isues here - the new code had a typo expecting
>keep_aspect instead of keep-aspect, which has now been fixed in CVS, and
>the background extension isn't autoloaded for OSC sequences.
>
>The latter you can force by starting urxvt with
>
>   urxvt --background-expr "" ...
>
>Or by manually enabling the background extension
>
>   urxvt -pe background ...
>
>-- 
>                The choice of a       Deliantra, the free code+content MORPG
>      -----==-     _GNU_  http://www.deliantra.net
>      ----==-- _       generation
>      ---==---(_)__  __ ____  __      Marc Lehmann
>      --==---/ / _ \/ // /\ \/ /  schm...@schmorp.de
>      -=====/_/_//_/\_,_/ /_/\_\
>
>
>
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