Robert Cranston authored on 01/07/2022 22:22:26
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+# Following Vim's dark/light naming convention. |
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+COLOR_DARKBLACK=0 |
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+COLOR_DARKRED=1 |
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+COLOR_DARKGREEN=2 |
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+COLOR_DARKYELLOW=3 |
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+COLOR_DARKBLUE=4 |
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+COLOR_DARKMAGENTA=5 |
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+COLOR_DARKCYAN=6 |
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+COLOR_DARKWHITE=7 |
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+COLOR_LIGHTBLACK=8 |
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+COLOR_LIGHTRED=9 |
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+COLOR_LIGHTGREEN=10 |
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+COLOR_LIGHTYELLOW=11 |
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+COLOR_LIGHTBLUE=12 |
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+COLOR_LIGHTMAGENTA=13 |
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+COLOR_LIGHTCYAN=14 |
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+COLOR_LIGHTWHITE=15 |
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+# Default to light. |
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+COLOR_BLACK="$COLORS_LIGHTBLACK" |
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+COLOR_RED="$COLORS_LIGHTRED" |
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+COLOR_GREEN="$COLORS_LIGHTGREEN" |
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+COLOR_YELLOW="$COLORS_LIGHTYELLOW" |
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+COLOR_BLUE="$COLORS_LIGHTBLUE" |
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+COLOR_MAGENTA="$COLORS_LIGHTMAGENTA" |
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+COLOR_CYAN="$COLORS_LIGHTCYAN" |
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+COLOR_WHITE="$COLORS_LIGHTWHITE" |
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+ |
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+__color_enabled="$(command -v tput)" |
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+__color_count="$([ "$__color_enabled" ] && tput colors || echo 0)" |
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+ |
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+__color_test_put() |
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+{
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+ [ "$__color_enabled" ] || return 0 |
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+ for __color |
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+ do |
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+ if [ $__color_count -lt 16 ] && [ $__color -ge 8 ] |
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+ then |
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+ __color=$((__color - 8)) |
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+ tput bold |
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+ fi |
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+ tput setaf "$__color" |
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+ printf '%s' '██' |
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+ tput sgr0 |
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+ done |
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+} |
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+ |
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+__color_test() |
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+{
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+ __color_test_put 0 |
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+ __color_test_put $(seq 1 6) |
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+ __color_test_put 7 |
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+ printf '\n' |
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+ __color_test_put 8 |
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+ __color_test_put $(seq 9 14) |
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+ __color_test_put 15 |
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+ printf '\n' |
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+} |
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+ |
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+__color_test1() |
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+{
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+ __color_test_put 0 |
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+ printf '\n' |
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+ __color_test_put 8 |
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+ printf '\n' |
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+ __color_test_put 7 |
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+ __color_test_put $(seq 1 6) |
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+ printf '\n' |
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+ __color_test_put 15 |
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+ __color_test_put $(seq 9 14) |
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+ printf '\n' |
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+} |
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+ |
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+__color_test2() |
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+{
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+ __color_test_put 0 |
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+ printf '\n' |
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+ __color_test_put 8 |
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+ __color_test_put $(seq 1 6) |
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+ printf '\n' |
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+ __color_test_put 7 |
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+ printf '\n' |
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+ __color_test_put 15 |
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+ __color_test_put $(seq 9 14) |
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+ printf '\n' |
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+} |
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+ |
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+__color_format() |
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+{
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+ for __color |
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+ do |
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+ # Same as `ceil(__color/0xff*1000)`. |
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+ printf '%s\n' "$(((__color * 1000 + 0xfe) / 0xff))" |
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+ done |
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+} |
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+ |
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+# `terminfo` does not define capabilities for setting the default foreground |
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+# and background colors, so if the terminal supports at least 16 colors we use |
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+# OSC 10/11 directly and hope for the best. This causes `tmux` to explicitly |
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+# render the background color, which causes issues with transparency. This also |
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+# causes Vim's `:terminal` to interpret the escape character as an escape key |
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+# press which puts readline in vi command mode. Therefore we only do this if |
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+# we're a login shell. |
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+__color_set_fg() |
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+{
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+ [ -z "$TMUX" ] || return 0 |
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+ [ -z "$VIM" ] || return 0 |
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+ # [ "$__color_count" -ge 16 ] || return 0 |
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+ # case "$0" in |
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+ # -*) break ;; |
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+ # *) return 0 ;; |
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+ # esac |
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+ printf '\33]10;rgb:%02x/%02x/%02x\33\\' "$@" |
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+} |
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+__color_set_bg() |
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+{
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+ [ -z "$TMUX" ] || return 0 |
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+ [ -z "$VIM" ] || return 0 |
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+ # [ "$__color_count" -ge 16 ] || return 0 |
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+ # case "$0" in |
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+ # -*) break ;; |
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+ # *) return 0 ;; |
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+ # esac |
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+ printf '\33]11;rgb:%02x/%02x/%02x\33\\' "$@" |
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+} |
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+ |
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+__color_set() |
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+{
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+ [ "$__color_enabled" ] || return 0 |
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+ __color=$((0)) |
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+ while read -r __color_r __color_g __color_b __color_comment |
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+ do |
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+ [ "$__color_r" ] || continue |
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+ # Palette. |
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+ tput initc "$((__color))" $(__color_format \ |
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+ "$__color_r" \ |
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+ "$__color_g" \ |
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+ "$__color_b" |
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+ ) |
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+ # Background (color 0, to match the Linux console). |
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+ if [ "$__color" -eq 0 ] |
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+ then |
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+ __color_set_bg \ |
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+ "$__color_r" \ |
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+ "$__color_g" \ |
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+ "$__color_b" |
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+ fi |
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+ # Foreground (color 7, to match the Linux console). |
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+ if [ "$__color" -eq 7 ] |
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+ then |
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+ __color_set_fg \ |
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+ "$__color_r" \ |
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+ "$__color_g" \ |
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+ "$__color_b" |
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+ fi |
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+ __color=$((__color + 1)) |
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+ done |
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+} |
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+ |
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+__color_set_uniform_hard_linear() |
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+{
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+ # https://notes.rcrnstn.net/colors.md |
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+ # hard-linear |
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+ echo ' |
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+ 0x00 0x00 0x00 Black |
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+ 0xa4 0x6a 0x6a Red |
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+ 0x4e 0x86 0x56 Green |
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+ 0x87 0x79 0x40 Yellow |
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+ 0x64 0x7a 0xa4 Blue |
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+ 0x9c 0x68 0x98 Magenta |
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+ 0x07 0x87 0x88 Cyan |
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+ 0x79 0x79 0x79 White |
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+ 0x3e 0x3e 0x3e Bright Black |
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+ 0xff 0xa6 0xa7 Bright Red |
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+ 0x7b 0xd1 0x88 Bright Green |
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+ 0xd3 0xbe 0x67 Bright Yellow |
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+ 0x9d 0xbf 0xff Bright Blue |
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+ 0xf3 0xa3 0xec Bright Magenta |
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+ 0x00 0xd3 0xd4 Bright Cyan |
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+ 0xbe 0xbe 0xbe Bright White |
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+ ' | __color_set |
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+} |
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+ |
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+__color_set_twisted1() |
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+{
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+ echo ' |
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+ 0x00 0x00 0x00 Black |
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+ 0x9a 0x6a 0x4b Red |
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+ 0x08 0x84 0x65 Green |
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+ 0x6d 0x7b 0x32 Yellow |
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+ 0x7d 0x6b 0xa4 Blue |
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+ 0xa4 0x5e 0x83 Magenta |
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+ 0x08 0x80 0x95 Cyan |
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+ 0x75 0x75 0x75 White |
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+ 0x3b 0x3b 0x3b BrightBlack |
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+ 0xee 0xa6 0x77 BrightRed |
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+ 0x09 0xce 0x9e BrightGreen |
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+ 0xab 0xbf 0x51 BrightYellow |
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+ 0xc3 0xa8 0xfd BrightBlue |
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+ 0xfe 0x94 0xcd BrightMagenta |
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+ 0x07 0xc7 0xe8 BrightCyan |
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+ 0xb6 0xb6 0xb6 BrightWhite |
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+ ' | __color_set |
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+} |
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+ |
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+__color_set_twisted2() |
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+{
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+ echo ' |
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+ 0x00 0x00 0x00 Black |
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+ 0xa4 0x5e 0x83 Red |
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+ 0x6d 0x7b 0x32 Green |
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+ 0x9a 0x6a 0x4b Yellow |
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+ 0x08 0x80 0x95 Blue |
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+ 0x7d 0x6b 0xa4 Magenta |
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+ 0x08 0x84 0x65 Cyan |
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+ 0x75 0x75 0x75 White |
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+ 0x3b 0x3b 0x3b BrightBlack |
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+ 0xfe 0x94 0xcd BrightRed |
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+ 0xab 0xbf 0x51 BrightGreen |
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+ 0xee 0xa6 0x77 BrightYellow |
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+ 0x07 0xc7 0xe8 BrightBlue |
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+ 0xc3 0xa8 0xfd BrightMagenta |
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+ 0x09 0xce 0x9e BrightCyan |
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+ 0xb6 0xb6 0xb6 BrightWhite |
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+ ' | __color_set |
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+} |
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+ |
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+__color_set_alacritty() |
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+{
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+ # https://github.com/alacritty/alacritty/blob/master/extra/man/alacritty.5.scd#colors |
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+ echo ' |
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+ 0x0f 0x0f 0x0f Black |
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+ 0x71 0x2b 0x2b Red |
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+ 0x5f 0x6f 0x3a Green |
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+ 0xa1 0x7e 0x4d Yellow |
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+ 0x45 0x68 0x77 Blue |
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+ 0x70 0x4d 0x68 Magenta |
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+ 0x4d 0x77 0x70 Cyan |
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+ 0x8e 0x8e 0x8e White |
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+ 0x6b 0x6b 0x6b Bright Black |
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+ 0xc5 0x55 0x55 Bright Red |
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+ 0xaa 0xc4 0x74 Bright Green |
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+ 0xfe 0xca 0x88 Bright Yellow |
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+ 0x82 0xb8 0xc8 Bright Blue |
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+ 0xc2 0x8c 0xb8 Bright Magenta |
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+ 0x93 0xd3 0xc3 Bright Cyan |
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+ 0xf8 0xf8 0xf8 Bright White |
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+ ' | __color_set |
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+} |
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+ |
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+__color_set_uniform_hard_linear |
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