diff --git a/index.json b/index.json
index 89b02b9..c68d842 100644
--- a/index.json
+++ b/index.json
@@ -1,6 +1,6 @@
 {
   "schemaVersion": 1,
-  "updated_at": "2026-07-18",
+  "updated_at": "2026-07-29",
   "themes": [
     {
       "id": "dream-skin-original",
@@ -211,6 +211,25 @@
       "preview": "themes/preset-sakura-dawn/preview.jpg",
       "theme_sha256": "05190d4e4248d2f71993a1732ff857a7689cdd355e7fa588406cdcd573919699",
       "image_sha256": "ae63c486b5a211fc818348896ce947e569d8d300987640817021816a4ebd07ab"
+    },
+    {
+      "id": "dreamskin-prism-night",
+      "name": "紫夜限定",
+      "version": "1.0.0",
+      "author": "axdlee / Codex Dream Skin contributors",
+      "description": "蓝紫星夜、晶体蝴蝶与微光轨道，适合沉浸工作。",
+      "license": "CC BY 4.0",
+      "source_url": "https://github.com/axdlee/Codex-Dream-Skin",
+      "tags": [
+        "原创",
+        "场景",
+        "深色"
+      ],
+      "theme": "themes/dreamskin-prism-night/theme.json",
+      "image": "themes/dreamskin-prism-night/image.png",
+      "preview": "themes/dreamskin-prism-night/preview.jpg",
+      "theme_sha256": "785adf43f878f3b2216f4777ad511a907e7c8b9bd69f554b5333bbabb5904d54",
+      "image_sha256": "933f46678605340dccf14421842cc12b7fc090cf816d4836a7434428c8e30ac5"
     }
   ]
 }
diff --git a/themes/dreamskin-prism-night/LICENSE.md b/themes/dreamskin-prism-night/LICENSE.md
new file mode 100644
index 0000000..0747b94
--- /dev/null
+++ b/themes/dreamskin-prism-night/LICENSE.md
@@ -0,0 +1,9 @@
+# 紫夜限定 license
+
+- Theme author: axdlee / Codex Dream Skin contributors
+- Image author: axdlee; AI-generated original visual asset, curated for Codex Dream Skin.
+- Original project: https://github.com/axdlee/Codex-Dream-Skin
+- Theme ID: dreamskin-prism-night
+- License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)
+- Attribution: Please credit “axdlee / Codex Dream Skin contributors”.
+- Third-party materials: None.
diff --git a/themes/dreamskin-prism-night/image.png b/themes/dreamskin-prism-night/image.png
new file mode 100644
index 0000000..420ffb1
Binary files /dev/null and b/themes/dreamskin-prism-night/image.png differ
diff --git a/themes/dreamskin-prism-night/preview.jpg b/themes/dreamskin-prism-night/preview.jpg
new file mode 100644
index 0000000..3dc586b
Binary files /dev/null and b/themes/dreamskin-prism-night/preview.jpg differ
diff --git a/themes/dreamskin-prism-night/theme.json b/themes/dreamskin-prism-night/theme.json
new file mode 100644
index 0000000..bea64bb
--- /dev/null
+++ b/themes/dreamskin-prism-night/theme.json
@@ -0,0 +1,24 @@
+{
+  "schemaVersion": 1,
+  "id": "dreamskin-prism-night",
+  "name": "紫夜限定",
+  "stylePreset": "dreamskin-prism-night",
+  "brandSubtitle": "PRISM NIGHT",
+  "tagline": "蓝紫星夜、晶体蝴蝶与微光轨道，适合沉浸工作。",
+  "projectPrefix": "星夜项目 ·",
+  "projectLabel": "选择星夜项目",
+  "statusText": "PRISM NIGHT ONLINE",
+  "quote": "FOLLOW THE LIGHT",
+  "colors": {
+    "background": "#090d38",
+    "panel": "#12164b",
+    "panelAlt": "#1b225f",
+    "accent": "#7b78ff",
+    "accentAlt": "#c16ef4",
+    "secondary": "#37c9ef",
+    "highlight": "#da55dc",
+    "text": "#f4f2ff",
+    "muted": "#aaa9dc",
+    "line": "#7b78ff"
+  }
+}