feat(healthchat): paint the subtle gradient in brand blue

ElementX/Sources/AppHooks/HealthChat/HealthChatCompoundHook.swift

@@ -28,6 +28,7 @@ struct HealthChatCompoundHook: CompoundHookProtocol {
             \.textActionAccent,
             \.textLinkExternal,
             \.borderInteractivePrimary,
+            \.borderAccentPrimary,
             \.textBadgeAccent
         ]
         let solidUIColorTokens: [KeyPath<CompoundUIColorTokens, UIColor> & Sendable] = [
@@ -39,6 +40,7 @@ struct HealthChatCompoundHook: CompoundHookProtocol {
             \.textActionAccent,
             \.textLinkExternal,
             \.borderInteractivePrimary,
+            \.borderAccentPrimary,
             \.textBadgeAccent
         ]
         for keyPath in solidColorTokens {
@@ -63,6 +65,19 @@ struct HealthChatCompoundHook: CompoundHookProtocol {
             colors.override(keyPath, with: Color(brand))
         }
         
+        // Subtle gradient (home screen bloom, highlighted timeline item) → brand blue fading out,
+        // at the opacities Compound uses for its green stops. Stop 6 stays transparent.
+        let subtleGradientTokens: [KeyPath<CompoundColorTokens, Color>] = [
+            \.gradientSubtleStop1,
+            \.gradientSubtleStop2,
+            \.gradientSubtleStop3,
+            \.gradientSubtleStop4,
+            \.gradientSubtleStop5
+        ]
+        for (keyPath, opacity) in zip(subtleGradientTokens, [0.41, 0.23, 0.11, 0.06, 0.03]) {
+            colors.override(keyPath, with: Color(brand).opacity(opacity))
+        }
+        
         // Subtle accent backgrounds (paired with accent-coloured foregrounds) → brand tint.
         let tintColorTokens: [KeyPath<CompoundColorTokens, Color>] = [
             \.bgAccentSelected,

HEALTHCHAT_CHANGES.md

@@ -9,6 +9,13 @@ matches `## Changes in <version>` exactly.
 
 Upstream's `CHANGES.md` tracks element-hq's own releases and must not be edited here.
 
+## Changes in 26.11.2 (2026-10-20)
+
+🙌 Improvements
+
+- The coloured fade at the top of the chat list, the highlight when jumping to a message and
+  the unread marker line now use HealthChat blue instead of Element green.
+
 ## Changes in 26.11.1 (2026-10-19)
 
 🙌 Improvements