move to imagemagick to convert icon

utils/render_windows_icon.py

@@ -1,15 +0,0 @@
-import argparse
-from io import BytesIO
-from pathlib import Path
-
-import cairosvg
-from PIL import Image
-
-parser = argparse.ArgumentParser(description="Render the given .svg file to a windows .ico file")
-parser.add_argument("svg", type=Path)
-
-args = parser.parse_args()
-
-png_data = BytesIO(cairosvg.svg2png(url=str(args.svg), parent_height=256, parent_width=256))
-image = Image.open(png_data, formats=["PNG"])
-image.save(args.svg.with_suffix(".ico"), format="ICO")

utils/render_windows_icon.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+if (( $# < 1 )); then
+    echo "usage : $0 SVG_FILE"
+    exit 1
+fi
+
+ICON_PATH="$(echo $1 | sed 's/[.]svg/.ico/')"
+
+convert \
+    -density 300 \
+    -define icon:auto-resize=256,128,96,64,48,32,16 \
+    -background none \
+    "$1" "$ICON_PATH"

utils/requirements.txt

@@ -1,2 +0,0 @@
-CairoSVG==2.7.0
-Pillow==10.0.0