fix(ui): convert LoadMoreRow SCSS to CSS and fix tree keyboard nav

[JarrodMFlesch]

Converts LoadMoreRow and the tree-specific Tree/LoadMore from SCSS to CSS, drops the dead --tree-node-padding-x declaration, removes the decorative elbow TreeConnector, and fixes a focus bug that broke keyboard navigation in the hierarchy tree.

SCSS → CSS

Migrates legacy theme tokens to UI4 semantic tokens (--theme-elevation-400 → --color-text-secondary, --theme-text → --color-text) and folds the removed connector's offset into the tree row's padding-left.

a11y fix

The keyboard-navigation fix addresses a focus bounce: each .tree-node registered onFocus={handleFocus}, and because React's onFocus bubbles, focusing a descendant node also fired its ancestor's handler, which synchronously re-focused the ancestor. Pressing ArrowDown/ArrowUp into any expanded node's child or sibling instantly snapped focus back to the parent, making the tree feel un-navigable. The handler now only claims focus when the event targets the node's own element:

-      onFocus={handleFocus}
+      onFocus={(e) => {
+        if (e.target === e.currentTarget) {
+          handleFocus()
+        }
+      }}

Related:

• Adds treeLimit: 4 to the v4 Folders and Tags hierarchy configs and seeds a deeper folder tree (Root Folder → Nested Parent Folder → Branch Folder → leaf children) so the nested LoadMoreRow pagination and tree keyboard navigation are exercisable in the v4 suite.

Before

CleanShot.2026-06-12.at.16.44.15.mp4

After

CleanShot.2026-06-12.at.16.46.52.mp4

[github-actions]

📦 esbuild Bundle Analysis for payload

This analysis was generated by esbuild-bundle-analyzer. 🤖

Meta File	Out File	Size (raw)	Note
packages/next/meta_index.json	esbuild/index.js	201.84 KB	✅ No change
packages/payload/meta_index.json	esbuild/index.js	1.39 MB	✅ No change
packages/payload/meta_shared.json	esbuild/exports/shared.js	192.54 KB	✅ No change
packages/richtext-lexical/meta_client.json	esbuild/exports/client_optimized/index.js	304.96 KB	✅ No change
packages/ui/meta_client.json	esbuild/exports/client_optimized/index.js	1.37 MB	✅ -146 B (-0.0%)
packages/ui/meta_shared.json	esbuild/exports/shared_optimized/index.js	18.66 KB	✅ No change

Largest paths

These visualization shows top 20 largest paths in the bundle.

Meta file: packages/next/meta_index.json, Out file: esbuild/index.js

Path	Size
../../node_modules	${{\color{Goldenrod}{ ████████████████████████▋ }}}$ 98.9%, 197.86 KB
dist/adapters/router.js	${{\color{Goldenrod}{ }}}$ 0.3%, 663 B
dist/adapters/server.js	${{\color{Goldenrod}{ }}}$ 0.3%, 533 B
dist/adapters/layout.js	${{\color{Goldenrod}{ }}}$ 0.3%, 526 B
dist/adapters/views.js	${{\color{Goldenrod}{ }}}$ 0.2%, 409 B
dist/esbuildEntry.js	${{\color{Goldenrod}{ }}}$ 0.0%, 0 B

Meta file: packages/payload/meta_index.json, Out file: esbuild/index.js

Path	Size
../../node_modules	${{\color{Goldenrod}{ █████████████████▎ }}}$ 69.3%, 960.51 KB
dist/fields/hooks	${{\color{Goldenrod}{ ▊ }}}$ 3.2%, 43.88 KB
dist/collections/operations	${{\color{Goldenrod}{ ▋ }}}$ 2.9%, 40.22 KB
dist/auth/operations	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 15.63 KB
dist/utilities/configToJSONSchema.js	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 14.93 KB
dist/globals/operations	${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 13.36 KB
dist/fields/config	${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 13.22 KB
dist/queues/operations	${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 12.63 KB
dist/fields/validations.js	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 10.57 KB
dist/bin/generateImportMap	${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 9.56 KB
dist/collections/config	${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 9.21 KB
dist/config/orderable	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.07 KB
dist/uploads/fetchAPI-multipart	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.80 KB
dist/index.js	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.77 KB
dist/hierarchy/utils	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.64 KB
dist/database/migrations	${{\color{Goldenrod}{ ▏ }}}$ 0.5%, 7.55 KB
dist/collections/endpoints	${{\color{Goldenrod}{ }}}$ 0.4%, 6.12 KB
dist/queues/config	${{\color{Goldenrod}{ }}}$ 0.4%, 5.59 KB
dist/auth/strategies	${{\color{Goldenrod}{ }}}$ 0.4%, 5.43 KB
dist/utilities/telemetry	${{\color{Goldenrod}{ }}}$ 0.4%, 5.31 KB
(other)	${{\color{Goldenrod}{ ███████▋ }}}$ 30.7%, 425.67 KB

Meta file: packages/payload/meta_shared.json, Out file: esbuild/exports/shared.js

Path	Size
../../node_modules	${{\color{Goldenrod}{ ███████████████████▉ }}}$ 79.5%, 150.12 KB
dist/fields/validations.js	${{\color{Goldenrod}{ █▍ }}}$ 5.6%, 10.57 KB
dist/config/orderable	${{\color{Goldenrod}{ ▍ }}}$ 1.7%, 3.13 KB
dist/fields/baseFields	${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 2.79 KB
dist/utilities/deepCopyObject.js	${{\color{Goldenrod}{ ▎ }}}$ 1.4%, 2.69 KB
dist/auth/cookies.js	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 1.55 KB
dist/utilities/flattenTopLevelFields.js	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 1.42 KB
dist/fields/config	${{\color{Goldenrod}{ ▏ }}}$ 0.7%, 1.29 KB
dist/utilities/getVersionsConfig.js	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 1.04 KB
dist/utilities/flattenAllFields.js	${{\color{Goldenrod}{ }}}$ 0.4%, 794 B
dist/utilities/unflatten.js	${{\color{Goldenrod}{ }}}$ 0.4%, 779 B
dist/utilities/sanitizeUserDataForEmail.js	${{\color{Goldenrod}{ }}}$ 0.4%, 713 B
dist/utilities/getFieldPermissions.js	${{\color{Goldenrod}{ }}}$ 0.3%, 651 B
dist/collections/config	${{\color{Goldenrod}{ }}}$ 0.3%, 570 B
dist/bin/generateImportMap	${{\color{Goldenrod}{ }}}$ 0.3%, 561 B
dist/auth/sessions.js	${{\color{Goldenrod}{ }}}$ 0.3%, 525 B
dist/fields/getFieldPaths.js	${{\color{Goldenrod}{ }}}$ 0.3%, 485 B
dist/utilities/appendDateTimezoneSelectFields.js	${{\color{Goldenrod}{ }}}$ 0.2%, 432 B
dist/utilities/getSafeRedirect.js	${{\color{Goldenrod}{ }}}$ 0.2%, 423 B
dist/utilities/deepMerge.js	${{\color{Goldenrod}{ }}}$ 0.2%, 413 B
(other)	${{\color{Goldenrod}{ █████▏ }}}$ 20.5%, 38.64 KB

Meta file: packages/richtext-lexical/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Path	Size
dist/features/blocks	${{\color{Goldenrod}{ ███ }}}$ 12.3%, 37.13 KB
dist/lexical/ui	${{\color{Goldenrod}{ ██▊ }}}$ 11.3%, 34.16 KB
dist/lexical/plugins	${{\color{Goldenrod}{ ██▋ }}}$ 10.9%, 32.88 KB
dist/features/experimental_table	${{\color{Goldenrod}{ ██▎ }}}$ 9.0%, 27.16 KB
dist/packages/@lexical	${{\color{Goldenrod}{ █▌ }}}$ 6.3%, 18.99 KB
dist/features/link	${{\color{Goldenrod}{ █▌ }}}$ 6.2%, 18.83 KB
dist/features/toolbars	${{\color{Goldenrod}{ █▍ }}}$ 5.5%, 16.58 KB
dist/features/upload	${{\color{Goldenrod}{ █▏ }}}$ 4.7%, 14.09 KB
dist/features/textState	${{\color{Goldenrod}{ ▉ }}}$ 3.7%, 11.08 KB
dist/features/relationship	${{\color{Goldenrod}{ ▊ }}}$ 3.2%, 9.61 KB
dist/lexical/utils	${{\color{Goldenrod}{ ▋ }}}$ 2.9%, 8.79 KB
dist/features/converters	${{\color{Goldenrod}{ ▋ }}}$ 2.8%, 8.36 KB
dist/utilities/fieldsDrawer	${{\color{Goldenrod}{ ▋ }}}$ 2.7%, 8.12 KB
dist/features/debug	${{\color{Goldenrod}{ ▋ }}}$ 2.5%, 7.40 KB
dist/lexical/config	${{\color{Goldenrod}{ ▍ }}}$ 1.7%, 5.08 KB
dist/features/lists	${{\color{Goldenrod}{ ▍ }}}$ 1.7%, 5.00 KB
dist/features/format	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 3.46 KB
dist/lexical/LexicalEditor.js	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 3.23 KB
dist/features/horizontalRule	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 3.18 KB
dist/field/Field.js	${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 2.83 KB
(other)	${{\color{Goldenrod}{ █████████████████████▉ }}}$ 87.7%, 264.60 KB

Meta file: packages/ui/meta_client.json, Out file: esbuild/exports/client_optimized/index.js

Path	Size
../../node_modules	${{\color{Goldenrod}{ ██████████▋ }}}$ 42.7%, 580.42 KB
dist/elements/Hierarchy	${{\color{Goldenrod}{ ▊ }}}$ 3.2%, 43.01 KB
dist/elements/BulkUpload	${{\color{Goldenrod}{ ▌ }}}$ 2.1%, 28.13 KB
dist/views/Version	${{\color{Goldenrod}{ ▌ }}}$ 2.0%, 27.40 KB
dist/views/HierarchyList	${{\color{Goldenrod}{ ▍ }}}$ 1.5%, 20.43 KB
dist/elements/Table	${{\color{Goldenrod}{ ▎ }}}$ 1.4%, 19.36 KB
dist/views/Dashboard	${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 17.73 KB
dist/views/Edit	${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 17.45 KB
dist/elements/WhereBuilder	${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 17.39 KB
dist/forms/Form	${{\color{Goldenrod}{ ▎ }}}$ 1.2%, 15.89 KB
dist/fields/Relationship	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 15.48 KB
dist/fields/Blocks	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 15.06 KB
dist/fields/Upload	${{\color{Goldenrod}{ ▎ }}}$ 1.1%, 14.40 KB
dist/elements/QueryPresets	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 10.22 KB
dist/views/List	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.78 KB
dist/elements/PublishButton	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.65 KB
dist/elements/ReactSelect	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.57 KB
dist/elements/HTMLDiff	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.38 KB
dist/elements/LivePreview	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 8.26 KB
dist/elements/UserMenu	${{\color{Goldenrod}{ ▏ }}}$ 0.6%, 7.98 KB
(other)	${{\color{Goldenrod}{ ██████████████▎ }}}$ 57.3%, 779.65 KB

Meta file: packages/ui/meta_shared.json, Out file: esbuild/exports/shared_optimized/index.js

Path	Size
dist/graphics/Logo	${{\color{Goldenrod}{ ███████▋ }}}$ 30.9%, 5.57 KB
../../node_modules	${{\color{Goldenrod}{ ███▋ }}}$ 14.7%, 2.65 KB
dist/graphics/Icon	${{\color{Goldenrod}{ ██▏ }}}$ 8.5%, 1.52 KB
dist/utilities/formatDocTitle	${{\color{Goldenrod}{ █▊ }}}$ 7.3%, 1.32 KB
dist/providers/TableColumns	${{\color{Goldenrod}{ █▏ }}}$ 4.8%, 866 B
dist/utilities/getGlobalData.js	${{\color{Goldenrod}{ █ }}}$ 4.2%, 762 B
dist/utilities/api.js	${{\color{Goldenrod}{ █ }}}$ 4.2%, 756 B
dist/utilities/groupNavItems.js	${{\color{Goldenrod}{ █ }}}$ 4.1%, 745 B
dist/elements/Translation	${{\color{Goldenrod}{ ▋ }}}$ 2.7%, 493 B
dist/utilities/handleTakeOver.js	${{\color{Goldenrod}{ ▌ }}}$ 2.4%, 440 B
dist/utilities/traverseForLocalizedFields.js	${{\color{Goldenrod}{ ▌ }}}$ 2.3%, 419 B
dist/elements/withMergedProps	${{\color{Goldenrod}{ ▍ }}}$ 1.9%, 339 B
dist/utilities/getNavGroups.js	${{\color{Goldenrod}{ ▍ }}}$ 1.9%, 338 B
dist/utilities/getVisibleEntities.js	${{\color{Goldenrod}{ ▍ }}}$ 1.8%, 329 B
dist/elements/WithServerSideProps	${{\color{Goldenrod}{ ▎ }}}$ 1.3%, 232 B
dist/utilities/handleGoBack.js	${{\color{Goldenrod}{ ▎ }}}$ 1.0%, 180 B
dist/fields/mergeFieldStyles.js	${{\color{Goldenrod}{ ▏ }}}$ 0.9%, 157 B
dist/utilities/handleBackToDashboard.js	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 152 B
dist/forms/Form	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 148 B
dist/utilities/abortAndIgnore.js	${{\color{Goldenrod}{ ▏ }}}$ 0.8%, 146 B
(other)	${{\color{Goldenrod}{ █████████████████▎ }}}$ 69.1%, 12.47 KB

Details

Next to the size is how much the size has increased or decreased compared with the base branch of this PR.

• ‼️: Size increased by 20% or more. Special attention should be given to this.
• ⚠️: Size increased in acceptable range (lower than 20%).
• ✅: No change or even downsized.
• 🗑️: The out file is deleted: not found in base branch.
• 🆕: The out file is newly found: will be added to base branch.

[JessRynkar]

We can address this separately in RTL improvements, just noting that the nesting indentations and padding are not correct in RTL: