diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49763fc..fed7293 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `CatppuccinFlavor` type deprecated in favor of `ThemeId`; `CatppuccinPalette` deprecated in favor of `ThemePalette`; `FLAVOR_LABELS` and `ALL_FLAVORS` deprecated in favor of `THEME_LIST` and `ALL_THEME_IDS`
 
 ### Fixed
+- SettingsTab theme dropdown sizing: set `min-width: 180px` on trigger container, `min-width: 280px` and `max-height: 400px` on dropdown menu, `white-space: nowrap` on option labels to prevent text truncation
 - SettingsTab input overflow: added `min-width: 0` on `.setting-row` to prevent flex children from overflowing container
 - SettingsTab a11y: project field labels changed from `<div><label>` to wrapping `<label><span class="field-label">` pattern for proper label/input association
 - SettingsTab CSS: removed unused `.project-field label` selector, simplified input selector to `.project-field input:not([type="checkbox"])`
diff --git a/docs/v3-progress.md b/docs/v3-progress.md
index f298619..1ee5376 100644
--- a/docs/v3-progress.md
+++ b/docs/v3-progress.md
@@ -162,3 +162,14 @@ All editor themes map to the same `--ctp-*` CSS custom property names (26 vars).
 
 #### Verification
 - No test changes needed — UI-only change, no logic changes
+
+### Session: 2026-03-07 — Theme Dropdown CSS Polish
+
+#### SettingsTab Dropdown Sizing Fix
+- [x] Set `min-width: 180px` on `.theme-dropdown` container (was `min-width: 0`) to prevent trigger from collapsing
+- [x] Set `min-width: 280px` on `.theme-options` dropdown menu (was `right: 0`) to ensure full theme names visible
+- [x] Increased `max-height` from 320px to 400px on dropdown menu for better scrolling experience
+- [x] Added `white-space: nowrap` on `.theme-option-label` (was `min-width: 0`) to prevent label text wrapping
+
+#### Verification
+- No test changes needed — CSS-only change