1 files changed, 19 insertions, 1 deletions
diff --git a/scripts/theme-studio/test-app-core.mjs b/scripts/theme-studio/test-app-core.mjs
index 63e79a95c..e98e511e5 100644
--- a/scripts/theme-studio/test-app-core.mjs
+++ b/scripts/theme-studio/test-app-core.mjs
@@ -7,7 +7,7 @@ import assert from 'node:assert/strict';
 import { readFileSync } from 'node:fs';
 import { fileURLToPath } from 'node:url';
 import {
-  nameToHex, normalizePkgFace, buildPkgmap, packagesForExport, mergePackagesInto, effResolve, resolveSyntaxFg, resolveUiAttr, optList, paletteOptionList, spanNeighborHex, slugify,
+  nameToHex, normalizePkgFace, buildPkgmap, packagesForExport, mergePackagesInto, effResolve, resolveSyntaxFg, resolveUiAttr, dropdownRowTextColor, optList, paletteOptionList, spanNeighborHex, slugify,
   clearPalettePlan, deletePaletteColumnPlan, groundColumnMembersFromPalette, areAllLocked, lockToggleLabel, toggleLockSet,
 } from './app-core.js';
 import { planPaletteGenerator, entriesForGeneratedColumn } from './palette-generator-core.js';
@@ -769,3 +769,21 @@ test('resolveUiAttr: returns null when nothing up the chain is set', () => {
 test('resolveUiAttr: a face with no inherit and an unset attribute returns null', () => {
   assert.equal(resolveUiAttr('region', 'bg', { 'region': { bg: null } }), null);
 });
+
+// dropdownRowTextColor: a popup row showing a real palette color inherits the
+// popup foreground (legible on the fixed dark popup); only the filled default
+// row uses a contrast color against its own background. textOn is stubbed so the
+// test asserts the decision, not the contrast math.
+const stubTextOn = (h) => (h === '#000000' ? '#fff' : '#000');
+test('dropdownRowTextColor: a real palette color inherits the popup fg (empty)', () => {
+  assert.equal(dropdownRowTextColor('#2a3a5a', '#2a3a5a', stubTextOn), '');
+});
+test('dropdownRowTextColor: a dark swatch still inherits (regression: blues were unreadable)', () => {
+  assert.equal(dropdownRowTextColor('#000000', '#000000', stubTextOn), '');
+});
+test('dropdownRowTextColor: the filled default row contrasts against its fill', () => {
+  assert.equal(dropdownRowTextColor('', '#cdced1', stubTextOn), '#000');
+});
+test('dropdownRowTextColor: a default row with no fill inherits (empty)', () => {
+  assert.equal(dropdownRowTextColor('', '', stubTextOn), '');
+});