There is already a de facto standard for extended codes: Xterm's modifyOtherKeys. Applications: https://vimhelp.org/map.txt.html#modifyOtherKeys https://vimhe

There is already a de facto standard for extended codes: Xterm's modifyOtherKeys. Applications: https://vimhelp.org/map.txt.html#modifyOtherKeys https://vimhelp.org/map.txt.html#modifyOtherKeys https://github.com/emacs-mirror/emacs/blob/d68f2b8681f8eeb6bbf1b4476a88f00b2962179e/lisp/term/xterm.el#L35 https://github.com/emacs-mirror/emacs/blob/d68f2b8681f8eeb6b... https://github.com/akinomyoga/ble.sh https://github.com/akinomyoga/ble.sh https://github.com/mawww/kakoune/commit/47c0d2038807757207cde3b3e00fbc1ca9448178 https://github.com/mawww/kakoune/commit/47c0d2038807757207cd... https://github.com/tmux/tmux/wiki/Modifier-Keys#extended-keys https://github.com/tmux/tmux/wiki/Modifier-Keys#extended-key... https://github.com/magiblot/tvision/commit/a50569f549465c9eda245eeb714e1e805fa2cf88 https://github.com/magiblot/tvision/commit/a50569f549465c9ed... Terminals: xterm (obviously) https://github.com/gnachman/iTerm2/commit/ac1aa575011028ed86851c15b177b0e9c78082e0 https://github.com/gnachman/iTerm2/commit/ac1aa575011028ed86... https://github.com/r-c-f/foot https://github.com/r-c-f/foot https://github.com/kovidgoyal/kitty/commit/d360d077d1f7723b1023b77969c38436353b9519 https://github.com/kovidgoyal/kitty/commit/d360d077d1f7723b1... https://github.com/tomszilagyi/zutty https://github.com/tomszilagyi/zutty https://github.com/mintty/mintty/blob/master/wiki/CtrlSeqs.md https://github.com/mintty/mintty/blob/master/wiki/CtrlSeqs.m...