diff --git a/src/ClaudeDo.Ui/Design/IslandStyles.axaml b/src/ClaudeDo.Ui/Design/IslandStyles.axaml
index b2eefb3..9e44ce3 100644
--- a/src/ClaudeDo.Ui/Design/IslandStyles.axaml
+++ b/src/ClaudeDo.Ui/Design/IslandStyles.axaml
@@ -79,8 +79,8 @@
     <!-- Icon.Refine (stroke-rendered via Path.plan-icon — list lines + two sparkles) -->
     <StreamGeometry x:Key="Icon.Refine">M3,6 L13,6 M3,11 L11,11 M3,16 L9,16 M18.5,3 L19.28,5.22 L21.5,6 L19.28,6.78 L18.5,9 L17.72,6.78 L15.5,6 L17.72,5.22 Z M19.5,14.9 L19.85,16.15 L21.1,16.5 L19.85,16.85 L19.5,18.1 L19.15,16.85 L17.9,16.5 L19.15,16.15 Z</StreamGeometry>
 
-    <!-- Icon.X -->
-    <StreamGeometry x:Key="Icon.X">M6 6l12 12M18 6L6 18</StreamGeometry>
+    <!-- Icon.X — filled X outline (PathIcon fills, so a stroke-only X renders invisible) -->
+    <StreamGeometry x:Key="Icon.X">M6.4 4.6 L12 10.2 L17.6 4.6 L19.4 6.4 L13.8 12 L19.4 17.6 L17.6 19.4 L12 13.8 L6.4 19.4 L4.6 17.6 L10.2 12 L4.6 6.4 Z</StreamGeometry>
 
     <!-- Icon.Check -->
     <StreamGeometry x:Key="Icon.Check">M4 12l5 5 11-11</StreamGeometry>