dotfiles/config/shared/bin/test-true-color.sh
2025-11-03 06:08:42 +02:00

49 lines
1.5 KiB
Bash

#!/usr/bin/env bash
echo
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";
}'
# --- Environment diagnostics -------------------------------------------------
echo
echo "──────────────────────────────"
echo " Environment and Tmux Details "
echo "──────────────────────────────"
echo "TERM: ${TERM}"
echo "COLORTERM: ${COLORTERM:-undefined}"
echo
if command -v tmux >/dev/null && tmux info &>/dev/null; then
echo "Tmux RGB/Tc capabilities:"
tmux info | grep -E "RGB|Tc" || echo "(none found)"
echo
echo "Tmux server terminal options:"
tmux show-options -s | grep terminal || echo "(none found)"
else
echo "Tmux not running or unavailable."
fi
# --- Underline capability test -----------------------------------------------
echo
echo "Underline styles test:"
printf '\x1b[58:2::255:0:0m' # red underline color
printf '\x1b[4:1msingle ' # single underline
printf '\x1b[4:2mdouble ' # double underline
printf '\x1b[4:3mcurly ' # curly underline
printf '\x1b[4:4mdotted ' # dotted underline
printf '\x1b[4:5mdashed ' # dashed underline
printf '\x1b[0m\n'
echo