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fix: proper macOS dock icon via .icns bundle replacement

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Replace the Swift squircle hack with the correct Apple approach:
generate a proper .icns using sips + iconutil, then replace
electron.icns in the Electron bundle before launch. macOS applies
its native squircle mask + shadow from the .icns automatically.
This commit is contained in:
Jannis Braun
2026-03-16 04:29:09 +01:00
parent c176ea801a
commit cd2f1e52ef
4 changed files with 23 additions and 32 deletions
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packages/desktop/scripts/gen-dock-icon.swift
-21
View File
@@ -1,21 +0,0 @@
// Generates a squircle-masked dock icon for macOS dev mode.
// macOS only applies the squircle mask to packaged .app bundles,
// so app.dock.setIcon() needs a pre-masked PNG.
import AppKit
let src = NSImage(contentsOfFile: "build/icon.png")!
let size = src.size
let out = NSImage(size: size)
out.lockFocus()
let radius = size.width * 0.2237
let path = NSBezierPath(roundedRect: NSRect(origin: .zero, size: size), xRadius: radius, yRadius: radius)
path.addClip()
src.draw(in: NSRect(origin: .zero, size: size), from: NSRect(origin: .zero, size: size), operation: .sourceOver, fraction: 1.0)
out.unlockFocus()
let tiff = out.tiffRepresentation!
let rep = NSBitmapImageRep(data: tiff)!
let png = rep.representation(using: .png, properties: [:])!
try! png.write(to: URL(fileURLWithPath: "build/icon-dock.png"))
packages/desktop/scripts/gen-icns.sh
Executable
+22
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@@ -0,0 +1,22 @@
#!/bin/bash
# Generates a proper macOS .icns from the master icon PNG using Apple's iconutil.
# macOS applies squircle mask + shadow natively from .icns — no manual masking needed.
set -e
SRC="build/icon.png"
ICONSET="build/icon.iconset"
mkdir -p "$ICONSET"
sips -z 16 16 "$SRC" --out "$ICONSET/icon_16x16.png" >/dev/null
sips -z 32 32 "$SRC" --out "$ICONSET/icon_16x16@2x.png" >/dev/null
sips -z 32 32 "$SRC" --out "$ICONSET/icon_32x32.png" >/dev/null
sips -z 64 64 "$SRC" --out "$ICONSET/icon_32x32@2x.png" >/dev/null
sips -z 128 128 "$SRC" --out "$ICONSET/icon_128x128.png" >/dev/null
sips -z 256 256 "$SRC" --out "$ICONSET/icon_128x128@2x.png" >/dev/null
sips -z 256 256 "$SRC" --out "$ICONSET/icon_256x256.png" >/dev/null
sips -z 512 512 "$SRC" --out "$ICONSET/icon_256x256@2x.png" >/dev/null
sips -z 512 512 "$SRC" --out "$ICONSET/icon_512x512.png" >/dev/null
sips -z 1024 1024 "$SRC" --out "$ICONSET/icon_512x512@2x.png" >/dev/null
iconutil -c icns "$ICONSET" -o build/icon.icns
rm -rf "$ICONSET"