Merge pull request #3 from catdad-experiments/#2-maskable-icon

adding a maskable and monochrome icon, greatly simplifying the app icon

assets/build-icons.js

@@ -0,0 +1,47 @@
+const path = require('path');
+const { promises: fs } = require('fs');
+const { generateIcons } = require('svg-app-icon');
+
+const input = (...parts) => path.resolve(__dirname, ...parts);
+const output = (...parts) => path.resolve(__dirname, '../icons', ...parts);
+
+const background = '#cac9c8';
+
+(async () => {
+  await fs.rm(output(), { force: true, recursive: true });
+  await fs.mkdir(output());
+
+  const svg = await fs.readFile(input('icon.svg'));
+
+  for await (const icon of generateIcons([`<svg viewBox="0 0 10 10"><circle cx="5" cy="5" r="5" fill="${background}"/></svg>`, svg], {
+    ico: false,
+    icns: false,
+    svg: true,
+    png: true,
+    pngSizes: [48, 192, 512]
+  })) {
+    await fs.writeFile(output(icon.name), icon.buffer);
+  }
+
+  for await (const icon of generateIcons([`<svg viewBox="0 0 10 10"><rect x="0" y="0" width="10" height="10" fill="${background}" /></svg>`, svg], {
+    ico: false,
+    icns: false,
+    svg: false,
+    png: true,
+    pngSizes: [48, 192, 512]
+  })) {
+    const name = `${path.parse(icon.name).name}-maskable.${icon.ext}`;
+    await fs.writeFile(output(name), icon.buffer);
+  }
+
+  for await (const icon of generateIcons([svg], {
+    ico: false,
+    icns: false,
+    svg: false,
+    png: true,
+    pngSizes: [48, 192]
+  })) {
+    const name = `${path.parse(icon.name).name}-monochrome.${icon.ext}`;
+    await fs.writeFile(output(name), icon.buffer);
+  }
+})();