diff --git a/.gitea/workflows/creative-workspace.yml b/.gitea/workflows/creative-workspace.yml
index e784ddd..c3c3a70 100644
--- a/.gitea/workflows/creative-workspace.yml
+++ b/.gitea/workflows/creative-workspace.yml
@@ -15,6 +15,23 @@ concurrency:
   group: creative-workspace-${{ gitea.event.pull_request.number }}
   cancel-in-progress: true
 jobs:
+  verify-deployed-canvas:
+    runs-on: ces-control
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@v4
+      - name: Verify canvas acceptance script against the designated deployed server
+        run: |
+          node --check apps/studio/scripts/infinite-canvas-smoke.cjs
+          wiki_image=$(docker inspect --format '{{.Config.Image}}' prompt-waterfall-wiki-1)
+          [[ "$wiki_image" =~ ^waterfall-wiki:[0-9a-f]{40}$ ]]
+          test_image="waterfall-wiki-tests:${wiki_image#waterfall-wiki:}"
+          docker image inspect "$test_image" >/dev/null
+          docker run --rm \
+            --mount "type=bind,src=$PWD,dst=/delivery,readonly" \
+            -e NODE_PATH=/repo/apps/waterfall-wiki/node_modules \
+            -e CHROMIUM_PATH=/usr/bin/chromium \
+            --entrypoint node "$test_image" /delivery/apps/studio/scripts/infinite-canvas-smoke.cjs
   verify:
     runs-on: ces-control
     timeout-minutes: 60
diff --git a/apps/studio/scripts/infinite-canvas-smoke.cjs b/apps/studio/scripts/infinite-canvas-smoke.cjs
index 730095e..344aa7c 100644
--- a/apps/studio/scripts/infinite-canvas-smoke.cjs
+++ b/apps/studio/scripts/infinite-canvas-smoke.cjs
@@ -100,11 +100,27 @@ const fs=require('node:fs/promises');
   await page.waitForFunction(z=>new DOMMatrix(getComputedStyle(document.querySelector('[class*=world]')).transform).a!==z,anchorBefore.z);
   const anchorAfter=await worldAt();close(anchorBefore.x,anchorAfter.x);close(anchorBefore.y,anchorAfter.y);
   const saved=await snapshot();await page.reload();await page.waitForFunction(()=>!!localStorage.getItem('studio.infinite-canvas.v1'));assert.deepEqual(await snapshot(),saved);
-  await page.getByRole('button',{name:'切换明暗主题',exact:true}).click();await page.reload();await page.waitForFunction(()=>document.querySelector('main').dataset.theme==='light');
+  const themeToggle=page.getByRole('button',{name:'切换明暗主题',exact:true});
+  await page.waitForFunction(()=>document.querySelector('[data-theme-ready]')?.dataset.themeReady==='true');
+  const initialMode=await page.evaluate(()=>document.documentElement.dataset.mode);
+  assert.ok(['light','dark'].includes(initialMode));
+  for(const mode of [initialMode==='light'?'dark':'light',initialMode]){
+   await themeToggle.click();
+   const matchesTheme=mode=>{
+    const root=document.documentElement,canvas=document.querySelector('main');
+    return root.dataset.mode===mode&&root.dataset.theme===`canvas-${mode}`&&localStorage.getItem('endoleap.theme')===mode&&getComputedStyle(canvas).backgroundColor===(mode==='dark'?'rgb(20, 20, 20)':'rgb(250, 250, 250)');
+   };
+   await page.waitForFunction(matchesTheme,mode);
+   await page.reload({waitUntil:'commit'});
+   await page.waitForFunction(()=>document.querySelector('[data-theme-ready]')?.dataset.themeReady==='true');
+   await page.waitForFunction(matchesTheme,mode);
+   assert.deepEqual(await snapshot(),saved,'Theme changes must preserve canvas content');
+   await capture('canvas-theme-'+mode);
+  }
   if(process.env.SCREENSHOT_DIR){await fs.mkdir(process.env.SCREENSHOT_DIR,{recursive:true});await page.screenshot({path:process.env.SCREENSHOT_DIR+'/canvas-nodes-desktop.png'});}
   await page.setViewportSize({width:390,height:844});assert.ok(await page.evaluate(()=>document.documentElement.scrollWidth<=innerWidth));
   const viewport=await page.locator('[class*=viewport]').boundingBox();assert.equal(viewport.width,390);assert.equal(viewport.height,844);
   if(process.env.SCREENSHOT_DIR)await page.screenshot({path:process.env.SCREENSHOT_DIR+'/canvas-nodes-mobile.png'});
-  assert.deepEqual(errors,[]);console.log('Passed: selected-node re-click editing, drag, formatting, fixed composer, upload, references, task export, deletion/undo, reload and mobile bounds');
+  assert.deepEqual(errors,[]);console.log('Passed: selected-node re-click editing, drag, formatting, fixed composer, upload, references, task export, deletion/undo, reload, both persistent root themes and mobile bounds');
  }catch(error){if(process.env.SCREENSHOT_DIR&&page){await fs.mkdir(process.env.SCREENSHOT_DIR,{recursive:true});await page.screenshot({path:process.env.SCREENSHOT_DIR+'/canvas-failure.png'}).catch(()=>{})}throw error}finally{await browser.close()}
 })().catch(e=>{console.error(e);process.exitCode=1});