A new logo: a cube frying in a cast-iron pan, on a bevelled tile; tools/branding.py makes every size

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tools/branding.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+"""Makes every picture of the logo from branding/logo.svg (needs Inkscape):
+the app's own (content/), the Windows .ico, the macOS .icns, Android's launcher icons and
+the website's.  python3 tools/branding.py"""
+import os, shutil, struct, subprocess, sys, tempfile
+
+ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+SVG = os.path.join(ROOT, "branding", "logo.svg")
+
+
+def render(size, out):
+    subprocess.run(["inkscape", SVG, "-w", str(size), "-h", str(size), "-o", out], check=True, capture_output=True)
+
+
+def ico(pngs, out):  # an .ico of PNGs (Vista and newer read them)
+    data = [open(p, "rb").read() for _, p in pngs]
+    head = struct.pack("<HHH", 0, 1, len(pngs))
+    offset = 6 + 16 * len(pngs)
+    for (size, _), d in zip(pngs, data):
+        s = 0 if size >= 256 else size
+        head += struct.pack("<BBBBHHII", s, s, 0, 0, 1, 32, len(d), offset)
+        offset += len(d)
+    open(out, "wb").write(head + b"".join(data))
+
+
+def icns(pngs, out):  # an .icns of PNGs (macOS 10.7 and newer)
+    kinds = {16: b"icp4", 32: b"icp5", 64: b"icp6", 128: b"ic07", 256: b"ic08", 512: b"ic09", 1024: b"ic10"}
+    body = b""
+    for size, p in pngs:
+        d = open(p, "rb").read()
+        body += kinds[size] + struct.pack(">I", 8 + len(d)) + d
+    open(out, "wb").write(b"icns" + struct.pack(">I", 8 + len(body)) + body)
+
+
+def main():
+    if not shutil.which("inkscape"):
+        sys.exit("needs inkscape")
+    with tempfile.TemporaryDirectory() as tmp:
+        sizes = {}
+        for s in (16, 24, 32, 48, 64, 72, 96, 128, 144, 192, 256, 512, 1024):
+            sizes[s] = os.path.join(tmp, f"{s}.png")
+            render(s, sizes[s])
+        copy = lambda s, *to: shutil.copyfile(sizes[s], os.path.join(ROOT, *to))
+        copy(256, "branding", "logo.png")
+        copy(64, "branding", "icon.png")
+        copy(256, "content", "Fry3DX", "branding", "logo.png")
+        copy(64, "content", "Fry3DX", "branding", "icon.png")
+        copy(64, "docs", "img", "icon.png")
+        copy(512, "docs", "img", "logo.png")
+        shutil.copyfile(SVG, os.path.join(ROOT, "docs", "img", "logo.svg"))
+        for d, s in (("mdpi", 48), ("hdpi", 72), ("xhdpi", 96), ("xxhdpi", 144), ("xxxhdpi", 192)):
+            copy(s, "android", "res", f"mipmap-{d}", "ic_launcher.png")
+        ico([(s, sizes[s]) for s in (16, 24, 32, 48, 64, 128, 256)], os.path.join(ROOT, "branding", "fry3dx.ico"))
+        icns([(s, sizes[s]) for s in (16, 32, 64, 128, 256, 512, 1024)], os.path.join(ROOT, "branding", "fry3dx.icns"))
+    print("done")
+
+
+if __name__ == "__main__":
+    main()