[konsole] [Bug 479125] New: transparent sixels not transparent

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=479125

            Bug ID: 479125
           Summary: transparent sixels not transparent
    Classification: Applications
           Product: konsole
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: emulation
          Assignee: konsole-devel at kde.org
          Reporter: panjea.developers at gmail.com
  Target Milestone: ---

SUMMARY
***
Konsole is missing support for sixels with transparency, for both sixels over
sixels and sixels over text.
***


STEPS TO REPRODUCE
1. create a gif with ImageMagick:  convert a.png a.gif
2. img2sixel -o a.six a.gif
3. python -c 'fixed=open("a.six").read().replace("Pq", "P0;1;0q");
open("b.six","w").write(fixed)'
4. cat b.six

OBSERVED RESULT
sixel has black background

EXPECTED RESULT
sixel background should be transparent

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 22.04
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Note: works properly in Foot terminal:
https://codeberg.org/dnkl/foot/issues/391

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