diff --git a/apps/web/tests/plugin-manager.e2e.ts b/apps/web/tests/plugin-manager.e2e.ts
index b84e57a74b..67da5670de 100644
--- a/apps/web/tests/plugin-manager.e2e.ts
+++ b/apps/web/tests/plugin-manager.e2e.ts
@@ -688,6 +688,7 @@ describe('web e2e: plugin manager', () => {
   })
 
   it('shows an optional feature preview before activation and leaves other plugin details unchanged', async () => {
+    onTestFailed(() => saveFailureShot(page, 'web-e2e-plugin-manager-preview'))
     const panel = await openPluginsPanel()
     await panel.getByRole('button', { name: '更多', exact: true }).click()
     await panel.getByRole('button', { name: '查看 DSH 徽章技能', exact: true }).click()
diff --git a/packages/client/ui-plugin-manager/README.i18n.yaml b/packages/client/ui-plugin-manager/README.i18n.yaml
index cedd5ad788..3178bf5231 100644
--- a/packages/client/ui-plugin-manager/README.i18n.yaml
+++ b/packages/client/ui-plugin-manager/README.i18n.yaml
@@ -54,8 +54,8 @@
   en: ca75c51c89c2c9b0
   zh: 2064958b0754647e
 /deepseek-ai-dsh-client-ui-plugin-manager/known-limitations-and-deferred-work:
-  en: 149c0d23a56a4944
-  zh: e2feaadc871581ae
+  en: 344ba1e802163bb4
+  zh: f3cc2e30ffb037cb
 /deepseek-ai-dsh-client-ui-plugin-manager/known-limitations-and-deferred-work/dev-note:
   en: e67f633dc6fe7773
   zh: 3bb0c20c93f16f98
diff --git a/packages/client/ui-plugin-manager/README.md b/packages/client/ui-plugin-manager/README.md
index 2f763bee16..fec987e497 100644
--- a/packages/client/ui-plugin-manager/README.md
+++ b/packages/client/ui-plugin-manager/README.md
@@ -153,6 +153,7 @@ None; this package neither assembles nor sends a provider request.
 
 ## Known Limitations and Deferred Work
 
+- Feature previews have one image per language and no dark-theme variant, so the badge skill preview keeps its light background in dark theme.
 - Ping response time does not measure package-download throughput. Probes use the Host fetch route, which pnpm-specific proxy settings can differ from; users can always choose the registry manually, and installation retains its existing fallback rules.
 
 <a id="known-limitations-and-deferred-work"></a>
diff --git a/packages/client/ui-plugin-manager/README.zh.md b/packages/client/ui-plugin-manager/README.zh.md
index b3264c38eb..002375d467 100644
--- a/packages/client/ui-plugin-manager/README.zh.md
+++ b/packages/client/ui-plugin-manager/README.zh.md
@@ -153,6 +153,7 @@ Host 入口通过生成的 Remote 接口暴露 `pluginRegistryProbe.fastest()`
 
 ## 已知限制与延期工作
 
+- 功能配图每种语言只有一张，没有深色主题版本，因此徽章技能配图在深色主题中仍为浅色背景。
 - Ping 响应时间不代表包下载吞吐量。探测使用 Host fetch 的网络路径，pnpm 专用代理设置可能使用不同路径；用户始终可以手动选择安装源，安装仍遵循现有回退规则。
 
 <a id="known-limitations-and-deferred-work"></a>
diff --git a/packages/client/ui-plugin-manager/src/client/PluginManagerPage.tsx b/packages/client/ui-plugin-manager/src/client/PluginManagerPage.tsx
index 50ee55f037..6fb28e5bf7 100644
--- a/packages/client/ui-plugin-manager/src/client/PluginManagerPage.tsx
+++ b/packages/client/ui-plugin-manager/src/client/PluginManagerPage.tsx
@@ -247,10 +247,10 @@ function PackageArtwork({ src, row = false, size = row ? ROW_ARTWORK_SIZE : CARD
 
 /** A bundle's feature preview; a failed decode is reported in place without blocking management. */
 function PackagePreview({ src, title, t }: { readonly src: string; readonly title: string; readonly t: Translate }): ReactNode {
-  const [failed, setFailed] = useState(false)
-  return failed
+  const [failedSource, setFailedSource] = useState<string>()
+  return src === failedSource
     ? <p className={css.reason} role="status">{t('previewUnavailable')}</p>
-    : <img className={css.packagePreview} src={src} alt={t('previewAlt', { name: title })} onError={() => { setFailed(true) }} />
+    : <img className={css.packagePreview} src={src} alt={t('previewAlt', { name: title })} onError={() => { setFailedSource(src) }} />
 }
 
 /** A row's switch: locked, saying why, when the Host refuses to address the row through the profile patch. */
@@ -771,7 +771,7 @@ function PackageDetail({
       <MetadataError error={pkg.meta?.error} t={t} />
       {pkg.error === undefined ? null : <p className={css.reason} role="status">{t('reasonLabel')}: {managementText(pkg.error, t)}</p>}
       {pkg.readOnlyReason === undefined ? null : <p className={css.reason} role="status">{managementText({ code: pkg.readOnlyReason }, t)}</p>}
-      {preview === undefined ? null : <PackagePreview key={preview} src={preview} title={title} t={t} />}
+      {preview === undefined ? null : <PackagePreview src={preview} title={title} t={t} />}
       <div className={css.detailSections}>
         {configured
           ? (