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