Good day! All I wanted is to ask for 24bit (truecolor) color support. Here is copy-paste from my gist, tracking the support among various console programs (https://gist.github.com/XVilka/8346728) As you can see, it is now pretty widely adopted, and screen is a one of major players of console world, lacking truecolor support:
---------------------------------------------------------------------------------------------------------------------------- Truecolour escape codes doesnt uses a colour palete. It just specifies the colour itself. Here's a test case: printf "\x1b[38;2;255;100;0mTRUECOLOR\x1b[0m\n" or https://raw.githubusercontent.com/JohnMorales/dotfiles/master/colors/24-bit-color.sh or http://github.com/robertknight/konsole/tree/master/tests/color-spaces.pl or https://git.gnome.org/browse/vte/tree/perf/img.sh?h=vte-0-36 or just run this: awk 'BEGIN{ s="/\\/\\/\\/\\/\\"; s=s s s s s s s s; for (colnum = 0; colnum<77; colnum++) { r = 255-(colnum*255/76); g = (colnum*510/76); b = (colnum*255/76); if (g>255) g = 510-g; printf "\033[48;2;%d;%d;%dm", r,g,b; printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b; printf "%s\033[0m", substr(s,colnum+1,1); } printf "\n"; }' Keep in mind that it is possible to use both ';' and ':' as parameters delimiter. According to Wikipedia[1], this is only supported by xterm and konsole. [1] https://en.wikipedia.org/wiki/ANSI_color Currently, there is no support for the 24-bit colour descriptions in the terminfo/termcap database and utilites. See the discussion thread here: https://lists.gnu.org/archive/html/bug-ncurses/2013-10/msg00007.html Here are terminals discussions: Now supporting truecolour st (from suckless) [delimeter: semicolon] - http://lists.suckless.org/dev/1307/16688.html konsole [delimeter: colon, semicolon] - https://bugs.kde.org/show_bug.cgi?id=107487 iterm2 [delimeter: colon, semicolon] - only in the nighties https://code.google.com/p/iterm2/issues/detail?id=218 qterminal [delimeter: semicolon] - https://github.com/qterminal/qterminal/issues/78 Tera Term [delimeter: colon, semicolon] - Windows platform ConEmu [delimeter: semicolon] - Windows platform FinalTerm [delimeter: semicolon] - abandoned, iTerm2 borrowing it's ideas and features. mintty [delimeter: semicolon] Cygwin and MSYS/MSYS2 since commit https://github.com/mintty/mintty/commit/43f0ed8a46c6549cb9a3ea27abc057b5abe13bdb (2.0.1 release) - Windows platform all libvte based terminals (since 0.36 version) [delimeter: colon, semilocon] - https://bugzilla.gnome.org/show_bug.cgi?id=704449 libvte-based Gnome Terminal libvte-based sakura libvte-based Terminator - use GTK+3 version. libvte-based Lilyterm - since commit https://github.com/Tetralet/LilyTerm/commit/72536e7ba448ad9ef1126ce45fbde3a3407a271b libvte-based ROXTerm libvte-based evilvte - no release yet, version from git https://github.com/caleb-/evilvte libvte-based Termit libvte-based Termite libvte-based Tilda libvte-based tinyterm libvte-based lxterminal - with --enable-gtk3 configure flag. libvte-based mlterm - with --with-gtk=3.0 configure flag But there are bunch of libvte-based terminals for GTK2 so they are listed in the another section. Parsing ANSI colour sequences, but approximating them to 256 palette xterm (though doing it wrong: "it uses nearest colour in RGB colour space, with a usualfalse assumption about orthogonal axes") linux console (since v3.16): https://github.com/torvalds/linux/commit/cec5b2a97a11ade56a701e83044d0a2a984c67b4 Note about colour differences: a) RGB axes are not orthogonal, so you cannot use sqrt(R^2+G^2+B^2) formula, b) for colour differences there is more correct (but much more complex) CIEDE2000 formula (which may easily blow up performance if used blindly) [2]. [2] https://github.com/neovim/neovim/issues/793#issuecomment-48106948 NOT supporting truecolour urxvt (patched version [3] available) - http://lists.schmorp.de/pipermail/rxvt-unicode/2013q3/001826.html Terminology (E17) - https://phab.enlightenment.org/T746 mrxvt (looks abandoned) - https://sourceforge.net/p/materm/feature-requests/41/ aterm (looks abandoned) - https://sourceforge.net/p/aterm/feature-requests/23/ fbcon (from linux kernel) - https://bugzilla.kernel.org/show_bug.cgi?id=79551 FreeBSD console - https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=191652 PuTTY (patched version [4] {xterm-like approximation to 256 colors} and [5] {real true colors} available) - Windows platform libvte and GTK2 - based: libvte-based GTKTerm2 libvte-based stjerm (looks abandoned) - https://github.com/stjerm/stjerm/issues/39 libvte-based xfce4-terminal - will be solved automatically since Xfce slowly migrating to the GTK+3 [3] You can download patched version here https://github.com/spudowiar/rxvt-unicode/tree/24bit [4] You can download patched version here https://github.com/rdebath/PuTTY [5] You can download patched version here https://github.com/halcy/PuTTY Terminal multiplexers tmux - has support since 427b820... screen dvtm - not yet supporting True Colour https://github.com/martanne/dvtm/issues/10 pymux - tmux clone in pure Python (to enable truecolour run pymux with --truecolor option) Here are another console programs discussions: Supporting True Colour: irssi - https://github.com/irssi/irssi/pull/48 neovim - https://github.com/neovim/neovim/commit/8dd415e887923f99ab5daaeba9f0303e173dd1aa elinks - http://repo.or.cz/w/elinks.git/blob/HEAD:/configure.in#l1410 (./configure --enable-true-color) s-lang library - http://lists.jedsoft.org/lists/slang-users/2015/0000020.html (since pre2.3.1-35, for 64bit systems) Not supporting True Colour: mutt - http://dev.mutt.org/trac/ticket/3674 mc - http://www.midnight-commander.org/ticket/3145#comment:1 - demo patches attached ncurses library - https://lists.gnu.org/archive/html/bug-ncurses/2013-10/msg00007.html termbox library - https://github.com/nsf/termbox/issues/37 mcabber - https://bitbucket.org/McKael/mcabber-crew/issue/126/support-for-true-color-16-millions-colors emacs - http://emacs.1067599.n5.nabble.com/RFC-Add-tty-True-Color-support-td299962.html and http://emacs.1067599.n5.nabble.com/bug-20243-True-color-terminal-support-tc354040.html vim - https://bitbucket.org/ZyX_I/vim/commits/branch/24-bit-xterm tig - https://github.com/jonas/tig/issues/227 Best regards, Anton Kochkov. _______________________________________________ screen-users mailing list screen-users@gnu.org https://lists.gnu.org/mailman/listinfo/screen-users
