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35 lines
1.4 KiB
35 lines
1.4 KiB
9 months ago
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#!/bin/bash
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# https://unix.stackexchange.com/a/269085
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# A simple test of your console capacity to present so many colors is:
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# for r in {200..255..5}; do fb=4;g=1;b=1;printf '\e[0;%s8;2;%s;%s;%sm ' "$fb" "$r" "$g" "$b"; done; echo
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# It will present a red line with a very small change in tone from left to right.
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# If that small change is visible, your console is capable of 16 million colors.
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# If your console type support this, this code will create a color table:
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mode2header(){
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#### For 16 Million colors use \e[0;38;2;R;G;Bm each RGB is {0..255}
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printf '\e[m' # reset the colors.
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printf '\n\e[m%s\n' "Some samples of colors for r;g;b. Each one may be 000..255"
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printf '\e[m%59s\n' "for the ansi option: \e[0;38;2;r;g;bm or \e[0;48;2;r;g;bm :"
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}
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mode2colors(){
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# foreground or background (only 3 or 4 are accepted)
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local fb="$1"
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[[ $fb != 3 ]] && fb=4
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local samples=(0 63 127 191 255)
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for r in "${samples[@]}"; do
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for g in "${samples[@]}"; do
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for b in "${samples[@]}"; do
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printf '\e[0;%s8;2;%s;%s;%sm%03d;%03d;%03d ' "$fb" "$r" "$g" "$b" "$r" "$g" "$b"
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done; printf '\e[m\n'
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done; printf '\e[m'
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done; printf '\e[mReset\n'
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}
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mode2header
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mode2colors 3
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mode2colors 4
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printf '\n\e[0;38;2;255;0;0mNote\e[m: This is only a sample, all 16m colors should be available for use\e[m\n\n'
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