diff --git a/src/ui/effects/acrylic.cpp b/src/ui/effects/acrylic.cpp
index 07ac359..aed0507 100644
--- a/src/ui/effects/acrylic.cpp
+++ b/src/ui/effects/acrylic.cpp
@@ -586,12 +586,14 @@ void AcrylicMaterial::drawRect(ImDrawList* drawList, const ImVec2& pMin, const I
     float u1 = localX1 / viewportWidth_;
     float v1 = 1.0f - localY1 / viewportHeight_;  // V at bottom-right (low)
     
-    // Draw the blurred background.  Scale by both the glass preset
-    // opacity (fallbackColor.w) AND the user's UI opacity slider so
-    // that lowering card opacity lets the sharp background through.
+    // Draw the blurred background at (near) full strength so the panel is actually FROSTED — the
+    // blurred capture replaces the sharp background in the card. UI opacity is applied only to the
+    // tint overlay (in DrawGlassPanel), NOT here: scaling the blur by uiOpacity used to let the
+    // SHARP background bleed straight through at low opacity, which made the acrylic slider look
+    // like a no-op. A small floor keeps it frosted even for low-alpha presets.
     ImTextureID blurTex = getBlurredTexture();
     uint8_t glassAlpha = static_cast<uint8_t>(
-        std::min(255.0f, std::max(0.0f, params.fallbackColor.w * settings_.uiOpacity * 255.0f)));
+        std::min(255.0f, std::max(0.0f, std::max(params.fallbackColor.w, 0.90f) * 255.0f)));
 
     if (blurTex) {
         drawList->AddImageRounded(
@@ -1562,11 +1564,12 @@ void AcrylicMaterial::drawRect(ImDrawList* drawList, const ImVec2& pMin, const I
                (void*)blurTex, u0, v0, u1, v1);
     }
 
-    // Draw the blurred background.  Scale by both the glass preset
-    // opacity (fallbackColor.w) AND the user's UI opacity slider so
-    // that lowering card opacity lets the sharp background through.
+    // Draw the blurred background at (near) full strength so the panel is actually FROSTED — UI
+    // opacity is applied only to the tint overlay, NOT here (scaling the blur by uiOpacity let the
+    // SHARP background bleed through at low opacity, making the acrylic slider a no-op). Mirrors the
+    // GL drawRect fix above.
     uint8_t glassAlpha = (uint8_t)std::min(255.f,
-        std::max(0.f, params.fallbackColor.w * settings_.uiOpacity * 255.f));
+        std::max(0.f, std::max(params.fallbackColor.w, 0.90f) * 255.f));
 
     if (blurTex) {
         drawList->AddImageRounded(