diff --git a/README.md b/README.md
index 2e2fda10..ae0cec02 100644
--- a/README.md
+++ b/README.md
@@ -79,8 +79,8 @@
   <sub>暗色 · 真实注入截图（未发送输入已在截图时遮蔽，仅预览）</sub>
 </p>
 
-这组人物素材留在源码仓库用于参考与权利核验，不进入公开 DMG / Setup.exe；公开安装包只预置已确认
-可分发的 Gothic Void Crusade。普通用户仍可从菜单里的「更换背景图」导入自己有权使用的纯背景，
+这组人物素材留在源码仓库用于参考与权利核验，不进入公开 DMG / Setup.exe；公开 macOS 安装包预置已确认
+可分发的 Gothic Void Crusade 与原创「青蓝虚拟歌姬」。普通用户仍可从菜单里的「更换背景图」导入自己有权使用的纯背景，
 保存后继续一键切换。
 
 > 可下载的用户源图是 [`docs/images/presets/arina-hashimoto-source.png`](./docs/images/presets/arina-hashimoto-source.png)（`1672 × 941`）；源码参考预设使用 [`macos/presets/preset-arina-hashimoto/background.jpg`](./macos/presets/preset-arina-hashimoto/background.jpg)（规范化派生 `2560 × 1440`）。上面两个效果图包含真实 UI，**只作预览，绝不能当背景导入**。背景为用户提供的 AI 生成示例，不代表 OpenAI/Codex 官方视觉或背书；未确认人物与素材权利前不得把它打进公开安装包。
diff --git a/macos/CHANGELOG.md b/macos/CHANGELOG.md
index 7b5315d7..dc765d5e 100644
--- a/macos/CHANGELOG.md
+++ b/macos/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 未发布
+
+### 新增
+
+- 新增可公开分发的「青蓝虚拟歌姬」浅色预设，随 macOS 安装包播种，并用固定素材与元数据哈希保护已审核内容。
+
 ## 1.3.3 — 2026-07-23
 
 ### 修复
diff --git a/macos/NOTICE.md b/macos/NOTICE.md
index 862c222f..471be06b 100644
--- a/macos/NOTICE.md
+++ b/macos/NOTICE.md
@@ -26,6 +26,16 @@ this MIT-licensed project. It is the redistributable default artwork included in
 the public macOS and Windows installers. Its name and artwork do not imply
 OpenAI/Codex affiliation or endorsement.
 
+## Cyan Virtual Diva
+
+`presets/preset-cyan-virtual-diva/background.jpg` is maintainer-supplied
+original artwork depicting a fictional adult virtual singer. It was created
+for this project without an identifiable real-person likeness, named
+third-party character, or official OpenAI/Codex artwork. The maintainer grants
+permission to redistribute the image and its theme metadata as part of Codex
+Dream Skin source archives and public installers. The preset does not imply
+OpenAI/Codex affiliation or endorsement.
+
 ## Arina Hashimoto reference material
 
 The following user/maintainer-supplied files are excluded from the MIT software license:
diff --git a/macos/README.md b/macos/README.md
index 7c82fc90..8aefbf2c 100644
--- a/macos/README.md
+++ b/macos/README.md
@@ -89,8 +89,8 @@ CDP is powerful and unauthenticated on loopback. Prefer Restore when you are don
 
 ## Bundled presets
 
-The public DMG seeds **Gothic Void Crusade**, contributed through PR #134, as
-its redistributable default. A source checkout also contains the
+The public DMG seeds **Gothic Void Crusade**, contributed through PR #134, and
+the original **青蓝虚拟歌姬 / Cyan Virtual Diva** light preset. A source checkout also contains the
 **桥本有菜 / Arina Hashimoto** reference material, but the public app bundle
 deliberately excludes it until independent likeness and redistribution rights
 are confirmed.
diff --git a/macos/presets/README.md b/macos/presets/README.md
index 00adff08..ce668010 100644
--- a/macos/presets/README.md
+++ b/macos/presets/README.md
@@ -6,11 +6,14 @@
 
 ## 内置实测预设
 
-当前内置 `preset-gothic-void-crusade/`（Gothic Void Crusade）与
-`preset-arina-hashimoto/`（桥本有菜 / Arina Hashimoto）两套实机验证主题。
-前者是社区作者提供的原创哥特科幻背景；后者使用一张
+当前内置 `preset-gothic-void-crusade/`（Gothic Void Crusade）、
+`preset-cyan-virtual-diva/`（青蓝虚拟歌姬）与
+`preset-arina-hashimoto/`（桥本有菜 / Arina Hashimoto）三套实机验证主题。
+前两套是可进入公开安装包的原创虚构作品；后者使用一张
 `2560 × 1440`（16:9）纯背景：左侧低信息留白承载 Codex 原生标题，人物和花卉主视觉集中在右侧。浅色与暗色截图均来自真实 Codex 注入，不是 AI 绘制的整窗 UI。
 
+青蓝虚拟歌姬背景为维护者提供的原创虚构成年角色作品，未使用真人肖像、第三方角色名称或官方 Codex/OpenAI 素材；`2400 × 1350` JPEG 与主题元数据按贡献声明授权随本项目公开安装包再分发。具体哈希由 macOS 构建脚本锁定，素材声明见 [`../NOTICE.md`](../NOTICE.md)。
+
 来源尺寸必须如实区分：归档的用户源图（不随 preset 播种）是 `1672 × 941` PNG；preset 内的 `background.jpg` 保持其近 16:9 构图，标准化导出为 `2560 × 1440` JPEG，并不代表补回或新增了源图细节。派生文件使用 `sips -z 1440 2560 -s format jpeg -s formatOptions 90` 生成。
 
 - 可导入/可播种的主题素材只有 [`background.jpg`](./preset-arina-hashimoto/background.jpg) 与 [`theme.json`](./preset-arina-hashimoto/theme.json)。
@@ -23,7 +26,7 @@
 
 ```bash
 ~/.codex/codex-dream-skin-studio/scripts/switch-theme-macos.sh \
-  --id preset-arina-hashimoto
+  --id preset-cyan-virtual-diva
 ```
 
 ## 一套预设的结构
diff --git a/macos/presets/preset-cyan-virtual-diva/background.jpg b/macos/presets/preset-cyan-virtual-diva/background.jpg
new file mode 100644
index 00000000..e59844f7
Binary files /dev/null and b/macos/presets/preset-cyan-virtual-diva/background.jpg differ
diff --git a/macos/presets/preset-cyan-virtual-diva/theme.json b/macos/presets/preset-cyan-virtual-diva/theme.json
new file mode 100644
index 00000000..0638b875
--- /dev/null
+++ b/macos/presets/preset-cyan-virtual-diva/theme.json
@@ -0,0 +1,31 @@
+{
+  "schemaVersion": 1,
+  "id": "preset-cyan-virtual-diva",
+  "name": "青蓝虚拟歌姬",
+  "brandSubtitle": "CYAN WAVE STAGE",
+  "tagline": "让灵感沿着光与节拍流动。",
+  "projectPrefix": "选择项目 · ",
+  "projectLabel": "◉  选择项目",
+  "statusText": "CYAN WAVE ONLINE",
+  "quote": "BUILD IN YOUR OWN FREQUENCY",
+  "image": "background.jpg",
+  "appearance": "light",
+  "art": {
+    "focusX": 0.79,
+    "focusY": 0.44,
+    "safeArea": "left",
+    "taskMode": "ambient"
+  },
+  "colors": {
+    "background": "#eef8fc",
+    "panel": "#f6fcff",
+    "panelAlt": "#dff4f8",
+    "accent": "#1abbd0",
+    "accentAlt": "#54dce2",
+    "secondary": "#155b8e",
+    "highlight": "#786ee8",
+    "text": "#153b55",
+    "muted": "#5b7788",
+    "line": "rgba(28, 164, 196, .24)"
+  }
+}
diff --git a/macos/scripts/build-dmg.sh b/macos/scripts/build-dmg.sh
index de37193b..79d5b251 100755
--- a/macos/scripts/build-dmg.sh
+++ b/macos/scripts/build-dmg.sh
@@ -62,6 +62,8 @@ MOUNTED_APP="$MOUNT/Codex Dream Skin.app"
   || { printf 'Mounted app is missing license notices.\n' >&2; exit 1; }
 [ -f "$MOUNTED_APP/Contents/Resources/engine/presets/preset-gothic-void-crusade/theme.json" ] \
   || { printf 'Mounted app is missing the public release preset.\n' >&2; exit 1; }
+[ -f "$MOUNTED_APP/Contents/Resources/engine/presets/preset-cyan-virtual-diva/theme.json" ] \
+  || { printf 'Mounted app is missing the Cyan Virtual Diva preset.\n' >&2; exit 1; }
 [ ! -e "$MOUNTED_APP/Contents/Resources/engine/presets/preset-arina-hashimoto" ] \
   || { printf 'Mounted app contains a rights-restricted preset.\n' >&2; exit 1; }
 for excluded in build-client-release.sh build-dmg.sh build-menubar-app.sh build-release.sh \
diff --git a/macos/scripts/build-menubar-app.sh b/macos/scripts/build-menubar-app.sh
index e78564ef..48e78b73 100755
--- a/macos/scripts/build-menubar-app.sh
+++ b/macos/scripts/build-menubar-app.sh
@@ -112,21 +112,33 @@ for name in "${RUNTIME_SCRIPTS[@]}"; do
 done
 [ -d "$ROOT/assets" ] || { printf 'Engine directory missing: assets\n' >&2; exit 1; }
 /usr/bin/rsync -a "$ROOT/assets/" "$ENGINE/assets/"
-PUBLIC_PRESET="preset-gothic-void-crusade"
-PUBLIC_PRESET_SHA256="b76a7cbe2ff9d923846e931984d243a7ba1f25de8d190b5c6412c809c41aee42"
-PUBLIC_PRESET_THEME_SHA256="8316c6ad29e3b84806358ab4a730c7e063b261e379179b9608cf751c282d66a7"
-[ -d "$ROOT/presets/$PUBLIC_PRESET" ] \
-  || { printf 'Public release preset missing: %s\n' "$PUBLIC_PRESET" >&2; exit 1; }
-actual_public_preset_sha256="$(LC_ALL=C /usr/bin/shasum -a 256 \
-  "$ROOT/presets/$PUBLIC_PRESET/background.jpg" | /usr/bin/awk '{print $1}')"
-[ "$actual_public_preset_sha256" = "$PUBLIC_PRESET_SHA256" ] \
-  || { printf 'Reviewed public preset hash changed: %s\n' "$actual_public_preset_sha256" >&2; exit 1; }
-actual_public_preset_theme_sha256="$(LC_ALL=C /usr/bin/shasum -a 256 \
-  "$ROOT/presets/$PUBLIC_PRESET/theme.json" | /usr/bin/awk '{print $1}')"
-[ "$actual_public_preset_theme_sha256" = "$PUBLIC_PRESET_THEME_SHA256" ] \
-  || { printf 'Reviewed public preset metadata hash changed: %s\n' "$actual_public_preset_theme_sha256" >&2; exit 1; }
-/bin/mkdir -p "$ENGINE/presets/$PUBLIC_PRESET"
-/usr/bin/rsync -a "$ROOT/presets/$PUBLIC_PRESET/" "$ENGINE/presets/$PUBLIC_PRESET/"
+copy_public_preset() {
+  local preset_id="$1"
+  local expected_image_sha256="$2"
+  local expected_theme_sha256="$3"
+  local actual_image_sha256
+  local actual_theme_sha256
+  [ -d "$ROOT/presets/$preset_id" ] \
+    || { printf 'Public release preset missing: %s\n' "$preset_id" >&2; exit 1; }
+  actual_image_sha256="$(LC_ALL=C /usr/bin/shasum -a 256 \
+    "$ROOT/presets/$preset_id/background.jpg" | /usr/bin/awk '{print $1}')"
+  [ "$actual_image_sha256" = "$expected_image_sha256" ] \
+    || { printf 'Reviewed public preset image hash changed: %s %s\n' "$preset_id" "$actual_image_sha256" >&2; exit 1; }
+  actual_theme_sha256="$(LC_ALL=C /usr/bin/shasum -a 256 \
+    "$ROOT/presets/$preset_id/theme.json" | /usr/bin/awk '{print $1}')"
+  [ "$actual_theme_sha256" = "$expected_theme_sha256" ] \
+    || { printf 'Reviewed public preset metadata hash changed: %s %s\n' "$preset_id" "$actual_theme_sha256" >&2; exit 1; }
+  /bin/mkdir -p "$ENGINE/presets/$preset_id"
+  /usr/bin/rsync -a "$ROOT/presets/$preset_id/" "$ENGINE/presets/$preset_id/"
+}
+copy_public_preset \
+  "preset-gothic-void-crusade" \
+  "b76a7cbe2ff9d923846e931984d243a7ba1f25de8d190b5c6412c809c41aee42" \
+  "8316c6ad29e3b84806358ab4a730c7e063b261e379179b9608cf751c282d66a7"
+copy_public_preset \
+  "preset-cyan-virtual-diva" \
+  "124d1f8a74fb580ed8a3412a09087e5cce1a84845a872a399cc540f217f50bef" \
+  "8ae4995aad670f815431c15aec5bb801d52a6587ba23b98e472f1b54dfccc573"
 /bin/cp "$ROOT/VERSION" "$ENGINE/VERSION"
 /bin/cp "$ROOT/LICENSE" "$RESOURCES/LICENSE.txt"
 /bin/cp "$ROOT/NOTICE.md" "$RESOURCES/NOTICE.md"
diff --git a/macos/tests/image-metadata.test.mjs b/macos/tests/image-metadata.test.mjs
index 082013e5..328b2c3d 100644
--- a/macos/tests/image-metadata.test.mjs
+++ b/macos/tests/image-metadata.test.mjs
@@ -40,6 +40,21 @@ assert.deepEqual(readImageMetadata(gothic, ".jpg"), {
   taskMode: "ambient",
 });
 
+const cyanVirtualDiva = await fs.readFile(path.join(
+  macosRoot,
+  "presets",
+  "preset-cyan-virtual-diva",
+  "background.jpg",
+));
+assert.deepEqual(readImageMetadata(cyanVirtualDiva, ".jpg"), {
+  width: 2400,
+  height: 1350,
+  ratio: 2400 / 1350,
+  wide: true,
+  aspect: "wide",
+  taskMode: "ambient",
+});
+
 assert.deepEqual(classifyImageDimensions({ width: 2400, height: 1350 }), {
   width: 2400,
   height: 1350,
diff --git a/macos/tests/run-tests.sh b/macos/tests/run-tests.sh
index 21b2a323..46b40a11 100755
--- a/macos/tests/run-tests.sh
+++ b/macos/tests/run-tests.sh
@@ -89,6 +89,14 @@ if ! /usr/bin/grep -F -q "presets/preset-arina-hashimoto/" \
   printf 'Standalone release builders must explicitly exclude the restricted Arina preset.\n' >&2
   exit 1
 fi
+for public_release_script in build-menubar-app.sh build-dmg.sh; do
+  if ! /usr/bin/grep -F -q "preset-cyan-virtual-diva" \
+    "$ROOT/scripts/$public_release_script"; then
+    printf 'Public release script must include the Cyan Virtual Diva preset: %s\n' \
+      "$public_release_script" >&2
+    exit 1
+  fi
+done
 if ! /usr/bin/grep -F -q 'DEPLOY_PREVIOUS' "$ROOT/scripts/install-dream-skin-macos.sh" ||
    ! /usr/bin/grep -F -q 'rollback_deployed_project' "$ROOT/scripts/install-dream-skin-macos.sh"; then
   printf 'The macOS outer installer must roll back a failed engine deployment.\n' >&2
@@ -281,10 +289,12 @@ fi
   [ -f "$themes/preset-gothic-void-crusade/background.jpg" ] || exit 1
   [ -f "$themes/preset-arina-hashimoto/theme.json" ] || exit 1
   [ -f "$themes/preset-arina-hashimoto/background.jpg" ] || exit 1
+  [ -f "$themes/preset-cyan-virtual-diva/theme.json" ] || exit 1
+  [ -f "$themes/preset-cyan-virtual-diva/background.jpg" ] || exit 1
   [ -f "$themes/custom-keepme/theme.json" ] || exit 1
   for id in $retired; do [ ! -e "$themes/$id" ] || exit 1; done
   seeded="$(/usr/bin/find "$themes" -maxdepth 1 -type d -name "preset-*" | /usr/bin/wc -l | /usr/bin/tr -d " ")"
-  [ "$seeded" -eq 2 ] || exit 1
+  [ "$seeded" -eq 3 ] || exit 1
 ' _ "$ROOT"
 
 run_signed_runtime_switch_test() {