diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json b/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
index 3f00db4..64dc11e 100644
--- a/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -1,51 +1,61 @@
 {
   "images" : [
     {
+      "filename" : "icon_16x16.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "16x16"
     },
     {
+      "filename" : "icon_16x16@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "16x16"
     },
     {
+      "filename" : "icon_32x32.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "32x32"
     },
     {
+      "filename" : "icon_32x32@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "32x32"
     },
     {
+      "filename" : "icon_128x128.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "128x128"
     },
     {
+      "filename" : "icon_128x128@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "128x128"
     },
     {
+      "filename" : "icon_256x256.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "256x256"
     },
     {
+      "filename" : "icon_256x256@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "256x256"
     },
     {
+      "filename" : "icon_512x512.png",
       "idiom" : "mac",
       "scale" : "1x",
       "size" : "512x512"
     },
     {
+      "filename" : "icon_512x512@2x.png",
       "idiom" : "mac",
       "scale" : "2x",
       "size" : "512x512"
diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_128x128.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_128x128.png
new file mode 100644
index 0000000..84a366e
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_128x128@2x.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_128x128@2x.png
new file mode 100644
index 0000000..0693bd9
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_16x16.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_16x16.png
new file mode 100644
index 0000000..e684ea4
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_16x16@2x.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_16x16@2x.png
new file mode 100644
index 0000000..a778fe1
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_256x256.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_256x256.png
new file mode 100644
index 0000000..0693bd9
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_256x256@2x.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_256x256@2x.png
new file mode 100644
index 0000000..ea56053
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_32x32.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_32x32.png
new file mode 100644
index 0000000..a778fe1
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_32x32@2x.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_32x32@2x.png
new file mode 100644
index 0000000..dd06966
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_512x512.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_512x512.png
new file mode 100644
index 0000000..ea56053
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diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/icon_512x512@2x.png b/Resources/Assets.xcassets/AppIcon.appiconset/icon_512x512@2x.png
new file mode 100644
index 0000000..28e8f13
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diff --git a/Resources/dmg-background.png b/Resources/dmg-background.png
new file mode 100644
index 0000000..f930d40
Binary files /dev/null and b/Resources/dmg-background.png differ
diff --git a/Resources/dmg-background@2x.png b/Resources/dmg-background@2x.png
new file mode 100644
index 0000000..732ce99
Binary files /dev/null and b/Resources/dmg-background@2x.png differ
diff --git a/Sources/ICCery/AboutView.swift b/Sources/ICCery/AboutView.swift
index 2960f8b..a24a8e5 100644
--- a/Sources/ICCery/AboutView.swift
+++ b/Sources/ICCery/AboutView.swift
@@ -1,3 +1,4 @@
+import AppKit
 import SwiftUI
 import ICCeryCore
 
@@ -9,10 +10,12 @@ struct AboutView: View {
 
     var body: some View {
         VStack(spacing: 20) {
-            Image("ICCery-logo")
-                .resizable()
-                .scaledToFit()
-                .frame(height: 64)
+            if let icon = NSImage(named: NSImage.applicationIconName) {
+                Image(nsImage: icon)
+                    .resizable()
+                    .scaledToFit()
+                    .frame(height: 64)
+            }
 
             Text("ICCery")
                 .font(.title)
diff --git a/Sources/ICCery/CalibrationViewModel.swift b/Sources/ICCery/CalibrationViewModel.swift
index f07b7db..8ed2f17 100644
--- a/Sources/ICCery/CalibrationViewModel.swift
+++ b/Sources/ICCery/CalibrationViewModel.swift
@@ -91,8 +91,7 @@ final class CalibrationViewModel {
             workingDirectory: cwd
         )
 
-        Task { @MainActor [weak self] in
-            guard let self else { return }
+        Task { @MainActor in
             defer { self.isGenerating = false }
 
             do {
@@ -160,8 +159,7 @@ final class CalibrationViewModel {
             channelLimits: []
         )
 
-        Task { @MainActor [weak self] in
-            guard let self else { return }
+        Task { @MainActor in
             defer { self.isComputing = false }
 
             do {
diff --git a/Sources/ICCery/RootView.swift b/Sources/ICCery/RootView.swift
index 002a729..b38345e 100644
--- a/Sources/ICCery/RootView.swift
+++ b/Sources/ICCery/RootView.swift
@@ -29,7 +29,7 @@ struct RootView: View {
                 if let notice = model.notice {
                     NoticeBanner(notice: notice, onClose: model.dismissNotice)
                 }
-                stageContent
+                WizardStageContent(model: model, workflow: workflow)
             }
         }
         .frame(minWidth: 1100, minHeight: 700)
@@ -61,8 +61,16 @@ struct RootView: View {
         }
     }
 
-    @ViewBuilder
-    private var stageContent: some View {
+}
+
+/// Content for the active wizard stage. Isolated into its own view so that
+/// `WizardViewModel` is tracked via `@Bindable` instead of the parent's
+/// `TargetWorkflowViewModel`, which does not observe nested `wizard` mutations.
+private struct WizardStageContent: View {
+    @Bindable var model: WizardViewModel
+    var workflow: TargetWorkflowViewModel
+
+    var body: some View {
         switch model.stage {
         case .generate:
             Stage1View(workflow: workflow)
diff --git a/brand/dmg-background.svg b/brand/dmg-background.svg
new file mode 100644
index 0000000..ba4887f
--- /dev/null
+++ b/brand/dmg-background.svg
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 660 400" width="660" height="400">
+  <defs>
+    <!-- Logo Clip Path -->
+    <clipPath id="coneClip">
+      <path d="M 50 82 L 110 82 L 80 142 Z" />
+    </clipPath>
+    <!-- Logo Text Gradient -->
+    <linearGradient id="textGrad" x1="0%" y1="0%" x2="100%" y2="0%">
+      <stop offset="0%" stop-color="#00AEEF" />
+      <stop offset="100%" stop-color="#0066CC" />
+    </linearGradient>
+    <!-- Arrow Drop Shadow Filter -->
+    <filter id="arrowShadow" x="-20%" y="-20%" width="140%" height="140%">
+      <feDropShadow dx="0" dy="2" stdDeviation="3" flood-color="#000000" flood-opacity="0.35"/>
+    </filter>
+  </defs>
+
+  <!-- Solid Background (matches app --bg-color: #1e1e1e) -->
+  <rect width="660" height="400" fill="#1e1e1e" />
+
+  <!-- Top-Left Branding Logo & Text (standard header height) -->
+  <g transform="translate(24, 18) scale(0.44)">
+    <!-- Drop Shadow -->
+    <ellipse cx="80" cy="145" rx="25" ry="5" fill="#1E293B" opacity="0.1" />
+
+    <!-- Ice Cream Cone (Waffle) -->
+    <path d="M 50 82 L 110 82 L 80 142 Z" fill="#FAD7A1" stroke="#E59866" stroke-width="2.5" stroke-linejoin="round"/>
+    <g clip-path="url(#coneClip)" stroke="#E59866" stroke-width="2">
+      <line x1="40" y1="80" x2="120" y2="160" />
+      <line x1="55" y1="80" x2="135" y2="160" />
+      <line x1="70" y1="80" x2="150" y2="160" />
+      <line x1="85" y1="80" x2="165" y2="160" />
+
+      <line x1="120" y1="80" x2="40" y2="160" />
+      <line x1="105" y1="80" x2="25" y2="160" />
+      <line x1="90" y1="80" x2="10" y2="160" />
+      <line x1="75" y1="80" x2="-5" y2="160" />
+    </g>
+
+    <!-- CMYK Scoops (C, M, Y) -->
+    <circle cx="63" cy="72" r="22" fill="#00BCEB" stroke="#ffffff" stroke-width="2.5"/>
+    <circle cx="97" cy="72" r="22" fill="#EC008C" stroke="#ffffff" stroke-width="2.5"/>
+    <circle cx="80" cy="48" r="22" fill="#FFED00" stroke="#ffffff" stroke-width="2.5"/>
+
+    <!-- Black (Key) Cherry -->
+    <path d="M 80 23 Q 92 12 96 16" fill="none" stroke="#1E293B" stroke-width="2" stroke-linecap="round"/>
+    <circle cx="80" cy="24" r="7" fill="#1E293B" stroke="#ffffff" stroke-width="1.5"/>
+
+    <!-- Highlights on scoops for 3D effect -->
+    <circle cx="58" cy="67" r="4" fill="#ffffff" opacity="0.35"/>
+    <circle cx="92" cy="67" r="4" fill="#ffffff" opacity="0.35"/>
+    <circle cx="75" cy="43" r="4" fill="#ffffff" opacity="0.45"/>
+    <circle cx="78" cy="22" r="1.5" fill="#ffffff" opacity="0.6"/>
+
+    <!-- Text: ICCery -->
+    <text font-family="-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif" font-size="58" font-weight="800" x="140" y="105" fill="#ffffff" letter-spacing="-1">ICC<tspan fill="url(#textGrad)">ery</tspan></text>
+  </g>
+
+  <!-- Center White Arrow (Pointing right between App Icon and Applications folder) -->
+  <g filter="url(#arrowShadow)">
+    <path d="M 285 214 
+             L 342 214 
+             L 342 201 
+             Q 342 198 345 199.5
+             L 380 217.5 
+             Q 383 219 383 220 
+             Q 383 221 380 222.5 
+             L 345 240.5 
+             Q 342 242 342 239 
+             L 342 226 
+             L 285 226 
+             Q 282 226 282 223 
+             L 282 217 
+             Q 282 214 285 214 Z" 
+          fill="#ffffff" />
+  </g>
+</svg>
diff --git a/scripts/dmgbuild-settings.py b/scripts/dmgbuild-settings.py
index 94f1081..be4e87c 100755
--- a/scripts/dmgbuild-settings.py
+++ b/scripts/dmgbuild-settings.py
@@ -32,7 +32,7 @@ if background and not os.path.exists(background):
 icon = None
 
 # Window size is enough for the app icon and the Applications alias.
-window_rect = ((100, 100), (640, 480))
+window_rect = ((100, 100), (660, 400))
 
 # Use icon view without extra chrome.
 default_view = 'icon-view'
@@ -45,8 +45,8 @@ sidebar_width = 180
 
 # Position the .app on the left and the Applications alias on the right.
 icon_locations = {
-    'ICCery.app': (140, 240),
-    'Applications': (500, 240),
+    'ICCery.app': (180, 220),
+    'Applications': (480, 220),
 }
 
 # Symlink to /Applications for drag-and-drop install.