26 lines
742 B
Plaintext
26 lines
742 B
Plaintext
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#!/usr/bin/env bash
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#
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# Use this script to test if you have true color support in your terminal.
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# Usage: ./truecolor.sh
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# If the color ramp is perfectly smooth, true color is supported.
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#
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# Source: https://gist.github.com/XVilka/8346728
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#
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# old 's':
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#s="/\\/\\/\\/\\/\\"; s=s s s s s s s s;
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awk -v term_cols="${width:-$(tput cols || echo 80)}" 'BEGIN{
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s="/\\";
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for (colnum = 0; colnum<term_cols; colnum++) {
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r = 255-(colnum*255/term_cols);
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g = (colnum*510/term_cols);
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b = (colnum*255/term_cols);
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if (g>255) g = 510-g;
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printf "\033[48;2;%d;%d;%dm", r,g,b;
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printf "\033[38;2;%d;%d;%dm", 255-r,255-g,255-b;
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printf "%s\033[0m", substr(s,colnum%2+1,1);
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}
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printf "\n";
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}'
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