Hterm (the JS terminal emulator for the Chrome SSH extension) should parse DEC VT-compatible SIXEL image files and convert them to inline PNGs as though sent by OSC 1337.

Chrome Version       : irrelevant
URLs (if applicable) : chrome-extension://pnhechapfaindjhompbnflcldabbghjo/html/nassh.html
Other browsers tested:
     Safari: N/A / Untested
    Firefox: N/A / Untested
       Edge: N/A / Untested

What steps will reproduce the problem?
(1) open Chromium SSH extension & login
(2) cat sixel image file. (some examples are at https://invisible-mirror.net/archives/temp/SIXEL.tar.gz)

What is the expected result?
Image appears. Sixel draw directives are parsed and internally converted to a PNG and then displayed inline just as a PNG sent over OSC 1337 is displayed.

What happens instead?
Image does not appear. Sixel draw directives are ignored and passed as though they were regular data.

Sometimes, random characters are printed onscreen (??) (biplane.six), and sometimes, only an intended text portion of the sixel image is printed (oriole.six).

More information about sixels can be found here: https://en.wikipedia.org/wiki/Sixel
https://www.digiater.nl/openvms/decus/vax90b1/krypton-nasa/all-about-sixels.text https://www.vt100.net/docs/vt3xx-gp/chapter14.html