diff --git a/echobot/app/routers/web.py b/echobot/app/routers/web.py
index 0db0df3..cd92b6e 100644
--- a/echobot/app/routers/web.py
+++ b/echobot/app/routers/web.py
@@ -264,12 +264,19 @@ async def synthesize_tts(
     except RuntimeError as exc:
         raise HTTPException(status_code=503, detail=str(exc)) from exc
 
+    def _safe_header(value: str) -> str:
+        try:
+            value.encode("latin-1")
+            return value
+        except UnicodeEncodeError:
+            return value.encode("utf-8").decode("latin-1")
+
     return Response(
         content=speech.audio_bytes,
         media_type=speech.content_type,
         headers={
-            "X-TTS-Provider": speech.provider,
-            "X-TTS-Voice": speech.voice,
+            "X-TTS-Provider": _safe_header(str(speech.provider)),
+            "X-TTS-Voice": _safe_header(str(speech.voice)),
         },
     )
 
diff --git a/echobot/app/services/web_console/live2d/catalog.py b/echobot/app/services/web_console/live2d/catalog.py
index 9105b94..25afff1 100644
--- a/echobot/app/services/web_console/live2d/catalog.py
+++ b/echobot/app/services/web_console/live2d/catalog.py
@@ -124,10 +124,8 @@ def selection_key_for(self, candidate: Live2DModelCandidate) -> str:
         return f"{candidate.source}:{candidate.model_relative_path.as_posix()}"
 
     def asset_url_for(self, candidate: Live2DModelCandidate, relative_path: str) -> str:
-        return (
-            f"/api/web/live2d/{candidate.source}/"
-            f"{quote(str(relative_path or '').replace('\\', '/'), safe='/')}"
-        )
+        path = str(relative_path or "").replace("\\", "/")
+        return f"/api/web/live2d/{candidate.source}/{quote(path, safe='/')}"
 
     def directory_name_for(self, candidate: Live2DModelCandidate) -> str:
         runtime_relative_path = candidate.runtime_relative_path
diff --git a/echobot/app/web/features/live2d/scene.js b/echobot/app/web/features/live2d/scene.js
index dd739e0..9262896 100644
--- a/echobot/app/web/features/live2d/scene.js
+++ b/echobot/app/web/features/live2d/scene.js
@@ -491,6 +491,8 @@ export function createLive2DSceneController(deps) {
             autoStart: true,
             antialias: true,
             backgroundAlpha: 0,
+            resolution: window.devicePixelRatio || 1,
+            autoDensity: true,
         });
         live2dState.live2dStage = live2dState.pixiApp.stage;
         live2dState.live2dStage.interactive = true;
diff --git a/echobot/skills/news/SKILL.md b/echobot/skills/news/SKILL.md
index 630b531..80f5e33 100644
--- a/echobot/skills/news/SKILL.md
+++ b/echobot/skills/news/SKILL.md
@@ -9,8 +9,7 @@ description: >
   sports, and entertainment. Always use this skill for news-related requests, even
   if the user doesn't say the word "news" explicitly.
 metadata:
-  echo:
-    emoji: 📰
+  echo: '{"emoji": "📰"}'
 ---
 
 # News
diff --git a/echobot/skills/scrapling/SKILL.md b/echobot/skills/scrapling/SKILL.md
index 724e704..59445d1 100644
--- a/echobot/skills/scrapling/SKILL.md
+++ b/echobot/skills/scrapling/SKILL.md
@@ -1,5 +1,5 @@
 ---
-name: scrapling-official
+name: scrapling
 description: Scrape web pages using Scrapling with anti-bot bypass (like Cloudflare Turnstile), stealth headless browsing, spiders framework, adaptive scraping, and JavaScript rendering. Use when asked to scrape, crawl, or extract data from websites; web_fetch fails; the site has anti-bot protections; write Python code to scrape/crawl; or write spiders.
 version: 0.4.2
 license: Complete terms in LICENSE.txt
diff --git a/echobot/skills/weather/SKILL.md b/echobot/skills/weather/SKILL.md
index f15caf0..d19d6f3 100644
--- a/echobot/skills/weather/SKILL.md
+++ b/echobot/skills/weather/SKILL.md
@@ -8,8 +8,7 @@ description: >
   macOS, and Windows without any setup.
 homepage: "https://wttr.in/:help"
 metadata:
-  echo:
-    emoji: 🌤️
+  echo: '{"emoji": "🌤️"}'
 name: weather
 ---