diff --git a/media-src/icon.svg b/media-src/icon.svg
index 7be8a64..b203f48 100644
--- a/media-src/icon.svg
+++ b/media-src/icon.svg
@@ -1,13 +1,7 @@
-<!-- Hyper Git marketplace logo source (256x256). Rasterized to ../media/icon.png. Glyph adapted from Tabler Icons (MIT). -->
+<!-- Hyper Git 品牌图标源文件 (256x256, 透明底). Emerald 圆环方案. 栅格化输出至 ../media/icon.png (带 alpha 的 PNG). 字形改编自 Tabler Icons (MIT). -->
 <svg width="256" height="256" viewBox="0 0 256 256" fill="none" xmlns="http://www.w3.org/2000/svg">
-  <defs>
-    <linearGradient id="hg-bg" x1="0" y1="0" x2="256" y2="256" gradientUnits="userSpaceOnUse">
-      <stop offset="0" stop-color="#3B82F6" />
-      <stop offset="1" stop-color="#7C5CFC" />
-    </linearGradient>
-  </defs>
-  <rect x="0" y="0" width="256" height="256" rx="58" fill="url(#hg-bg)" />
-  <g transform="translate(26 26) scale(8.5)" fill="none" stroke="#ffffff" stroke-width="1.7" stroke-linecap="round" stroke-linejoin="round">
+  <circle cx="128" cy="128" r="116" fill="none" stroke="#3FB950" stroke-width="9" />
+  <g transform="translate(26 26) scale(8.5)" fill="none" stroke="#3FB950" stroke-width="2.1" stroke-linecap="round" stroke-linejoin="round">
     <circle cx="6" cy="6" r="2" />
     <circle cx="6" cy="18" r="2" />
     <path d="M6 8v8" />
diff --git a/media/icon.png b/media/icon.png
index 66c89f4..98e5f90 100644
Binary files a/media/icon.png and b/media/icon.png differ
diff --git a/package.json b/package.json
index a8c21a2..32982c9 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,10 @@
 	"name": "hyper-git-agentic-git",
 	"displayName": "Hyper Git - Agentic Git",
 	"icon": "media/icon.png",
+	"galleryBanner": {
+		"color": "#0E2A1C",
+		"theme": "dark"
+	},
 	"description": "Hyper Git brings IntelliJ IDEA's powerful Git & Commit modules to VS Code, enhanced with AI-powered autonomous agents for intelligent repository management. Experience Git in a higher dimension.",
 	"version": "0.0.8",
 	"publisher": "ThreeFish-AI",