更新 App 图标为 house.fill 设计

Scripts/gen_icon.swift

@@ -0,0 +1,62 @@
+import AppKit
+
+let sizes = [16, 32, 64, 128, 256, 512, 1024]
+let tmp = "/tmp/AppIcon.iconset"
+try? FileManager.default.removeItem(atPath: tmp)
+try! FileManager.default.createDirectory(atPath: tmp, withIntermediateDirectories: true)
+
+func render(_ px: Int) -> NSImage {
+    let s = CGFloat(px)
+    let img = NSImage(size: NSSize(width: s, height: s))
+    img.lockFocus()
+    let ctx = NSGraphicsContext.current!.cgContext
+
+    // 圆角背景（macOS 图标标准圆角约 22.37%）
+    let inset = s * 0.08
+    let rect = CGRect(x: inset, y: inset, width: s - inset*2, height: s - inset*2)
+    let radius = rect.width * 0.2237
+    let path = NSBezierPath(roundedRect: rect, xRadius: radius, yRadius: radius)
+
+    // 黑色渐变背景
+    let grad = NSGradient(colors: [
+        NSColor(calibratedRed: 0.13, green: 0.13, blue: 0.14, alpha: 1),
+        NSColor(calibratedRed: 0.0, green: 0.0, blue: 0.0, alpha: 1)
+    ])!
+    path.addClip()
+    grad.draw(in: rect, angle: -90)
+
+    // house.fill 符号，饱和天蓝，居中约 62%
+    let cfg = NSImage.SymbolConfiguration(pointSize: s * 0.62, weight: .semibold)
+    if let sym = NSImage(systemSymbolName: "house.fill", accessibilityDescription: nil)?
+        .withSymbolConfiguration(cfg) {
+        let tinted = NSImage(size: sym.size)
+        tinted.lockFocus()
+        NSColor(calibratedRed: 0.13, green: 0.55, blue: 1.0, alpha: 1).set()
+        let r = NSRect(origin: .zero, size: sym.size)
+        sym.draw(in: r)
+        r.fill(using: .sourceAtop)
+        tinted.unlockFocus()
+
+        let sw = sym.size.width, sh = sym.size.height
+        let scale = (s * 0.62) / max(sw, sh)
+        let dw = sw * scale, dh = sh * scale
+        let dx = (s - dw)/2, dy = (s - dh)/2 + s * 0.025
+        tinted.draw(in: NSRect(x: dx, y: dy, width: dw, height: dh))
+    }
+    img.unlockFocus()
+    return img
+}
+
+for base in sizes {
+    for (suffix, scale) in [("", 1), ("@2x", 2)] {
+        let px = base * scale
+        if px > 1024 { continue }
+        let img = render(px)
+        guard let tiff = img.tiffRepresentation,
+              let rep = NSBitmapImageRep(data: tiff),
+              let png = rep.representation(using: .png, properties: [:]) else { continue }
+        let name = "icon_\(base)x\(base)\(suffix).png"
+        try! png.write(to: URL(fileURLWithPath: "\(tmp)/\(name)"))
+    }
+}
+print("iconset ready")