#!/bin/bash WIDTH=${1:-500} HEIGHT=${2:-370} TEXT=${3:-"Hello World"} OUTPUT=${4:-squircle.html} SMALLER=$(( WIDTH < HEIGHT ? WIDTH : HEIGHT )) RADIUS=$(( SMALLER / 10 )) CENTER_X=$(( WIDTH / 2 )) CENTER_Y=$(( HEIGHT / 2 )) FONT_SIZE=$(( SMALLER / 8 )) cat > "$OUTPUT" << EOF