fix(icons): generate non-transparent PNGs\n\n- prefer rsvg-convert/inkscape with fallback to ImageMagick\n- inject explicit stroke/fill on <path> to avoid inheritance issues\n- document rasterizer behavior in icons/README

scripts/build-icons.js

@@ -28,12 +28,22 @@ const TOOLBAR_SIZES = [16, 32];
 const COLOR_ADDON = process.env.ICON_COLOR_ADDON || '#223544';
 const COLOR_TOOLBAR = process.env.ICON_COLOR_TOOLBAR || '#5AC3D6';
 
-function ensureMagick() {
-  // Prefer calling binaries directly to avoid shell init output polluting stdout.
-  let ok = spawnSync('magick', ['-version']);
-  if (ok && ok.status === 0) return 'magick';
-  ok = spawnSync('convert', ['-version']);
-  if (ok && ok.status === 0) return 'convert';
+function which(cmd, args = ['--version']) {
+  try {
+    const res = spawnSync(cmd, args, { stdio: 'ignore' });
+    return res && res.status === 0;
+  } catch (_) {
+    return false;
+  }
+}
+
+function ensureRasterizer() {
+  // Prefer rsvg-convert (librsvg), then Inkscape, then ImageMagick.
+  if (which('rsvg-convert', ['-v'])) return { kind: 'rsvg', bin: 'rsvg-convert' };
+  // Inkscape 1.x CLI: --pipe reads from stdin
+  if (which('inkscape', ['--version'])) return { kind: 'inkscape', bin: 'inkscape' };
+  if (which('magick', ['-version'])) return { kind: 'magick', bin: 'magick' };
+  if (which('convert', ['-version'])) return { kind: 'magick', bin: 'convert' };
   return null;
 }
 
@@ -46,24 +56,45 @@ function readSvg() {
 }
 
 function colorize(svg, color) {
-  // Replace currentColor with explicit hex color. Keep case-insensitive safety.
-  return svg.replace(/currentColor/gi, color);
+  // Replace currentColor with explicit hex color and inject explicit stroke attributes on each path
+  let s = svg.replace(/currentColor/gi, color);
+  // Ensure each <path> has explicit stroke and fill to avoid inheritance issues in some renderers
+  s = s.replace(/<path\b([^>]*?)\/>/g, (m, attrs) => {
+    let a = attrs;
+    if (!/\bstroke\s*=/.test(a)) a = ` stroke=\"${color}\"` + a;
+    if (!/\bstroke-width\s*=/.test(a)) a = ` stroke-width=\"1.8\"` + a;
+    if (!/\bstroke-linecap\s*=/.test(a)) a = ` stroke-linecap=\"round\"` + a;
+    if (!/\bstroke-linejoin\s*=/.test(a)) a = ` stroke-linejoin=\"round\"` + a;
+    if (!/\bfill\s*=/.test(a)) a = ` fill=\"none\"` + a;
+    return `<path${a}/>`;
+  });
+  return s;
 }
 
-function rasterize(magickBin, svgString, size, outPath) {
-  // Use ImageMagick, transparent background, high density for crisp vector rasterization.
-  const args = ['-background', 'none', '-density', '384', 'svg:-', '-resize', `${size}x${size}`, outPath];
-  const proc = spawnSync(magickBin, args, { input: svgString, stdio: ['pipe', 'inherit', 'inherit'] });
+function rasterize(raster, svgString, size, outPath) {
+  let args;
+  let cmd = raster.bin;
+  if (raster.kind === 'rsvg') {
+    // rsvg-convert reads SVG and outputs PNG; specify size and transparent background
+    args = ['-f', 'png', '-w', String(size), '-h', String(size), '--background-color=transparent', '-o', outPath, '-'];
+  } else if (raster.kind === 'inkscape') {
+    // Inkscape 1.x: --export-type=png --export-filename=out --export-width/height, read from stdin via --pipe
+    args = ['--export-type=png', `--export-filename=${outPath}`, `--export-width=${size}`, `--export-height=${size}`, '--pipe'];
+  } else {
+    // ImageMagick
+    args = ['-background', 'none', '-density', '384', 'svg:-', '-resize', `${size}x${size}`, outPath];
+  }
+  const proc = spawnSync(cmd, args, { input: svgString, stdio: ['pipe', 'inherit', 'inherit'] });
   if (proc.status !== 0) {
-    console.error(`Failed to generate ${outPath}`);
+    console.error(`Failed to generate ${outPath} using ${raster.kind} (${cmd}).`);
     process.exit(proc.status || 1);
   }
 }
 
 function main() {
-  const magick = ensureMagick();
-  if (!magick) {
-    console.error('ImageMagick not found. Please install it or adjust this script to use inkscape/rsvg-convert.');
+  const raster = ensureRasterizer();
+  if (!raster) {
+    console.error('No SVG rasterizer found. Install one of: rsvg-convert, inkscape, or ImageMagick (magick/convert).');
     process.exit(1);
   }
   if (!fs.existsSync(ICONS_DIR)) fs.mkdirSync(ICONS_DIR, { recursive: true });
@@ -74,7 +105,7 @@ function main() {
   const addonSvg = colorize(base, COLOR_ADDON);
   for (const s of ADDON_SIZES) {
     const out = path.join(ICONS_DIR, `icon-${s}.png`);
-    rasterize(magick, addonSvg, s, out);
+    rasterize(raster, addonSvg, s, out);
     console.log(`Generated ${path.relative(REPO_ROOT, out)}`);
   }
 
@@ -82,7 +113,7 @@ function main() {
   const toolbarSvg = colorize(base, COLOR_TOOLBAR);
   for (const s of TOOLBAR_SIZES) {
     const out = path.join(ICONS_DIR, `icon-${s}.png`);
-    rasterize(magick, toolbarSvg, s, out);
+    rasterize(raster, toolbarSvg, s, out);
     console.log(`Generated ${path.relative(REPO_ROOT, out)}`);
   }
 }