diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4b7e2c..bff7554 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -47,6 +47,15 @@ All notable changes to Switchboard Core are documented here.
 - **Creator display name**: `chat-core.create()` now accepts
   `creator_display_name` so the conversation creator shows a readable name
   in the participant sidebar instead of a raw UUID.
+- **Chat dark mode theming**: Replaced non-existent CSS variable names with
+  actual theme tokens from `variables.css`. Fixes invisible text and wrong
+  backgrounds in dark mode.
+- **Dialog dropdown clipping**: UserPicker autocomplete dropdown in dialogs
+  (New Conversation, Add Participant) no longer clipped by `overflow: auto`
+  on `.sw-dialog__body`.
+- **User menu at scaled UI**: Menu primitive now divides anchor coordinates
+  and viewport dimensions by `sw.shell.getScale()` to compensate for CSS
+  `transform: scale()` on `#surfaceInner`. Fixes menu clipping at 110%+.
 
 ### Changed
 
diff --git a/ROADMAP.md b/ROADMAP.md
index 686701b..907a9e7 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -386,6 +386,7 @@ participation is post-MVP.
 | Item | Description |
 |------|-------------|
 | "Requires Review" filter | Dropdown filter option or dedicated button for `pending_review` packages. Useful when the package list grows long. |
+| Extreme UI scale polish | At 150%+ scale: user menu items overflow viewport (need scroll), topbar elements clipped. Ensure all surfaces and menus are usable at scale extremes (80%–200%). |
 
 ### v0.5.4 — Package Updates (planned)