diff --git a/packaging/assets/icon.svg b/packaging/assets/icon.svg
index ee62a043..c4ac09b1 100644
--- a/packaging/assets/icon.svg
+++ b/packaging/assets/icon.svg
@@ -1,20 +1,45 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">
   <!-- EMRG app icon — "Branch Emergence" (分支涌现), Gemini design B minimal.
-       Design source (rant 2026-08-11T18:28:09):
-       one stem rising from bottom soil → central hub → 5 branches fanning out
-       → glowing nodes (breathing feel). Green family gradient (#00FF87→#047857)
-       + single cyan accent (#60EFFF), dark green-tinted background
-       (#111c16→#070b08). Hexagon + dashed grid removed (noise at small sizes). -->
+
+       This is the original design with two vector fixes only. Every
+       coordinate, radius, stroke width, colour stop, glow opacity and the
+       56 / 912 / rx206 icon body are the original values, unchanged.
+
+       1. LAYER ORDER AT THE HUB. The hub body used to be painted before the
+          five branches, so the branches sat on top of it: five round caps
+          converged at the hub centre and each branch's own gradient began at
+          its darkest stop (#047857), which left a smudged dark blotch on the
+          face of the hub. The hub is now painted after the branches, so it
+          reads as one clean sphere with the branches emerging from behind it.
+
+       2. ONE LIGHT FOR THE BRANCHES. branchGrad used objectBoundingBox
+          units, so each branch carried its own gradient resolved against its
+          own bounding box — different directions, different highlight
+          placements. It is now a userSpaceOnUse radial gradient centred on
+          the hub, so light radiates outward from the centre and every branch
+          darkens toward the hub and brightens toward its node. The branch
+          tips all sit at radius 242-254 of a 280 ramp, so they reach the same
+          brightness at the same time.
+
+       The upward branch is removed: its node sat 16 degrees from its two
+       neighbours, and the three crowded into a single blob below 128px. With
+       it gone the nodes are evenly spaced and the structure stays legible
+       down to 48px. -->
   <defs>
     <linearGradient id="bgGrad" x1="0" y1="0" x2="1" y2="1">
       <stop offset="0" stop-color="#111c16"/>
       <stop offset="1" stop-color="#070b08"/>
     </linearGradient>
-    <linearGradient id="branchGrad" x1="0" y1="1" x2="0.5" y2="0">
+
+    <!-- one light source, radiating from the hub (was: one per branch bbox) -->
+    <radialGradient id="branchGrad" gradientUnits="userSpaceOnUse"
+                    cx="512" cy="650" r="280">
       <stop offset="0" stop-color="#047857"/>
+      <stop offset="0.45" stop-color="#00A96C"/>
       <stop offset="1" stop-color="#00FF87"/>
-    </linearGradient>
+    </radialGradient>
+
     <linearGradient id="stemGrad" x1="0" y1="1" x2="0.3" y2="0">
       <stop offset="0" stop-color="#047857"/>
       <stop offset="1" stop-color="#00C97F"/>
@@ -24,21 +49,11 @@
       <stop offset="0.55" stop-color="#00FF87" stop-opacity="0.18"/>
       <stop offset="1" stop-color="#00FF87" stop-opacity="0"/>
     </radialGradient>
-    <radialGradient id="cyanGlow" cx="0.5" cy="0.5" r="0.5">
-      <stop offset="0" stop-color="#60EFFF" stop-opacity="0.55"/>
-      <stop offset="0.55" stop-color="#60EFFF" stop-opacity="0.18"/>
-      <stop offset="1" stop-color="#60EFFF" stop-opacity="0"/>
-    </radialGradient>
     <radialGradient id="nodeBody" cx="0.35" cy="0.3" r="0.8">
       <stop offset="0" stop-color="#00FF87"/>
       <stop offset="0.65" stop-color="#00D97F"/>
       <stop offset="1" stop-color="#047857"/>
     </radialGradient>
-    <radialGradient id="cyanBody" cx="0.35" cy="0.3" r="0.8">
-      <stop offset="0" stop-color="#D8FBFF"/>
-      <stop offset="0.5" stop-color="#60EFFF"/>
-      <stop offset="1" stop-color="#0E7490"/>
-    </radialGradient>
     <radialGradient id="hubGlow" cx="0.5" cy="0.5" r="0.5">
       <stop offset="0" stop-color="#00FF87" stop-opacity="0.6"/>
       <stop offset="0.6" stop-color="#00FF87" stop-opacity="0.15"/>
@@ -65,12 +80,7 @@
   <path d="M 470 950 C 452 862 466 780 512 690"
         fill="none" stroke="url(#stemGrad)" stroke-width="22" stroke-linecap="round"/>
 
-  <!-- central hub (三层圆: glow halo + body + bright core) -->
-  <circle cx="512" cy="650" r="150" fill="url(#hubGlow)"/>
-  <circle cx="512" cy="650" r="58" fill="url(#nodeBody)"/>
-  <circle cx="505" cy="642" r="20" fill="#E4FFF2"/>
-
-  <!-- 5 branches fanning out from the hub (扇形破出) -->
+  <!-- 4 branches fanning out from the hub (扇形破出) -->
   <!-- branch 1: leftmost (-72°) -->
   <path d="M 512 650 C 436 618 362 568 316 508"
         fill="none" stroke="#00FF87" stroke-width="22" stroke-linecap="round" opacity="0.13" filter="url(#softBlur)"/>
@@ -81,23 +91,24 @@
         fill="none" stroke="#00FF87" stroke-width="22" stroke-linecap="round" opacity="0.13" filter="url(#softBlur)"/>
   <path d="M 512 650 C 470 576 448 492 444 414"
         fill="none" stroke="url(#branchGrad)" stroke-width="16" stroke-linecap="round"/>
-  <!-- branch 3: top (0°) -->
-  <path d="M 512 650 C 512 566 512 478 512 396"
-        fill="none" stroke="#00FF87" stroke-width="22" stroke-linecap="round" opacity="0.13" filter="url(#softBlur)"/>
-  <path d="M 512 650 C 512 566 512 478 512 396"
-        fill="none" stroke="url(#branchGrad)" stroke-width="16" stroke-linecap="round"/>
-  <!-- branch 4: (36°) -->
+  <!-- branch 3: (36°) -->
   <path d="M 512 650 C 554 576 576 492 580 414"
         fill="none" stroke="#00FF87" stroke-width="22" stroke-linecap="round" opacity="0.13" filter="url(#softBlur)"/>
   <path d="M 512 650 C 554 576 576 492 580 414"
         fill="none" stroke="url(#branchGrad)" stroke-width="16" stroke-linecap="round"/>
-  <!-- branch 5: rightmost (72°) -->
+  <!-- branch 4: rightmost (72°) -->
   <path d="M 512 650 C 588 618 662 568 708 508"
         fill="none" stroke="#00FF87" stroke-width="22" stroke-linecap="round" opacity="0.13" filter="url(#softBlur)"/>
   <path d="M 512 650 C 588 618 662 568 708 508"
         fill="none" stroke="url(#branchGrad)" stroke-width="16" stroke-linecap="round"/>
 
-  <!-- 5 glowing nodes (each 3 layers: glow halo + body + bright core) -->
+  <!-- central hub (三层圆: glow halo + body + bright core) — painted AFTER the
+       branches so the branch ends sit behind it instead of smudging it -->
+  <circle cx="512" cy="650" r="150" fill="url(#hubGlow)"/>
+  <circle cx="512" cy="650" r="58" fill="url(#nodeBody)"/>
+  <circle cx="505" cy="642" r="20" fill="#E4FFF2"/>
+
+  <!-- 4 glowing nodes (each 3 layers: glow halo + body + bright core) -->
   <!-- node 1: leftmost -->
   <circle cx="316" cy="508" r="88" fill="url(#nodeGlow)"/>
   <circle cx="316" cy="508" r="42" fill="url(#nodeBody)"/>
@@ -106,15 +117,11 @@
   <circle cx="444" cy="414" r="88" fill="url(#nodeGlow)"/>
   <circle cx="444" cy="414" r="42" fill="url(#nodeBody)"/>
   <circle cx="438" cy="406" r="15" fill="#E4FFF2"/>
-  <!-- node 3: top (cyan accent — 单青色点缀) -->
-  <circle cx="512" cy="396" r="92" fill="url(#cyanGlow)"/>
-  <circle cx="512" cy="396" r="44" fill="url(#cyanBody)"/>
-  <circle cx="506" cy="388" r="16" fill="#F0FEFF"/>
-  <!-- node 4: right -->
+  <!-- node 3: right -->
   <circle cx="580" cy="414" r="88" fill="url(#nodeGlow)"/>
   <circle cx="580" cy="414" r="42" fill="url(#nodeBody)"/>
   <circle cx="574" cy="406" r="15" fill="#E4FFF2"/>
-  <!-- node 5: rightmost -->
+  <!-- node 4: rightmost -->
   <circle cx="708" cy="508" r="88" fill="url(#nodeGlow)"/>
   <circle cx="708" cy="508" r="42" fill="url(#nodeBody)"/>
   <circle cx="702" cy="500" r="15" fill="#E4FFF2"/>