CSS: check Core CSS

Core: 10.4.3

Core module's hook_page_attachments:

• big_pipe_page_attachments: Don't add libraries.
• content_translation_page_attachments: Don't add libraries.
• contextual_page_attachments: Only for admins.
• system_page_attachments: system/base added.

system/base:

• css/components/align.module.css: nothing to do
• css/components/fieldgroup.module.css: nothing to do
• css/components/container-inline.module.css: already removed in USB
• css/components/clearfix.module.css: already removed in USB
• css/components/details.module.css: nothing to do
• css/components/hidden.module.css: a little redundant with Bootstrap classes, except .hidden not present in Bootstrap.
• css/components/item-list.module.css: nothing to do
• css/components/js.module.css: nothing to do
• css/components/nowrap.module.css: Bootstrap has .text-nowrap. nowrap maybe not used in Core. For one CSS selector, nothing to do.
• css/components/position-container.module.css: nothing to do
• css/components/reset-appearance.module.css: nothing to do
• css/components/resize.module.css: nothing to do
• css/components/system-status-counter.css: Only used on admin status report, to remove, if someone uses the USB theme as admin theme, will do proper theming in a follow-up issue.
• css/components/system-status-report-counters.css: Only used on admin status report, to remove, if someone uses the USB theme as admin theme, will do proper theming in a follow-up issue.
• css/components/system-status-report-general-info.css: Only used on admin status report, to remove, if someone uses the USB theme as admin theme, will do proper theming in a follow-up issue.
• css/components/tablesort.module.css: already removed in USB

Check preprocesses:

• shortcut_preprocess_page_title: shortcut/drupal.shortcut
  - added only if admin
• template_preprocess_update_report: update/drupal.update.admin
  - only for status report
• template_preprocess_views_view_table: core/drupal.tableheader
  - already removed in USB
• template_preprocess_views_view_table: core/drupal.tableresponsive
  - nothing to do
• template_preprocess_views_ui_view_preview_section: contextual/drupal.contextual-links
  - added only if admin

The following preprocesses don't add libraries:

• template_preprocess_block
• template_preprocess_block_content_add_list
• template_preprocess_book_all_books_block
• template_preprocess_book_navigation
• template_preprocess_book_export_html
• template_preprocess_book_node_export_html
• comment_preprocess_block
• template_preprocess_comment
• comment_preprocess_field
• content_moderation_preprocess_node
• content_translation_preprocess_language_content_settings_table
• template_preprocess_field_ui_table
• field_ui_preprocess_form_element__new_storage_type
• template_preprocess_file_managed_file
• template_preprocess_file_link
• template_preprocess_file_widget_multiple
• template_preprocess_file_upload_help
• template_preprocess_filter_guidelines
• template_preprocess_text_format_wrapper
• template_preprocess_filter_tips
• forum_preprocess_block
• template_preprocess_forums
• template_preprocess_forum_list
• template_preprocess_forum_icon
• template_preprocess_forum_submitted
• help_preprocess_block
• template_preprocess_image_style_preview
• template_preprocess_image_anchor
• template_preprocess_image_widget
• template_preprocess_image_formatter
• template_preprocess_image_style
• inline_form_errors_preprocess_form_element
• inline_form_errors_preprocess_details
• inline_form_errors_preprocess_fieldset
• inline_form_errors_preprocess_datetime_wrapper
• template_preprocess_language_negotiation_configure_form
• template_preprocess_language_content_settings_table
• language_preprocess_block
• layout_builder_preprocess_language_content_settings_table
• template_preprocess_layout
• template_preprocess_link_formatter_link_separate
• locale_preprocess_node
• template_preprocess_locale_translation_update_info
• template_preprocess_locale_translation_last_check
• template_preprocess_media
• media_preprocess_media_reference_help
• template_preprocess_media_library_wrapper
• template_preprocess_media_library_item
• media_library_preprocess_media
• media_library_preprocess_views_view__media_library
• media_library_preprocess_views_view_fields
• menu_ui_preprocess_block
• template_preprocess_node_add_list
• node_preprocess_html
• node_preprocess_block
• node_preprocess_field__node
• template_preprocess_node
• template_preprocess_responsive_image_formatter
• template_preprocess_responsive_image
• search_preprocess_block
• template_preprocess_search_result
• settings_tray_preprocess_block
• shortcut_preprocess_block
• statistics_preprocess_block
• template_preprocess_admin_block_content
• template_preprocess_admin_page
• template_preprocess_system_admin_index
• template_preprocess_system_modules_details
• template_preprocess_system_modules_uninstall
• template_preprocess_system_themes_page
• template_preprocess_entity_add_list
• system_preprocess_block
• system_preprocess_toolbar
• claro_preprocess_toolbar
• template_preprocess_system_security_advisories_fetch_error_message
• template_preprocess_taxonomy_term
• template_preprocess_toolbar
• toolbar_preprocess_html
• template_preprocess_update_last_check
• template_preprocess_update_version
• template_preprocess_update_project_status
• template_preprocess_update_fetch_error_message
• user_preprocess_block
• user_template_preprocess_default_variables_alter
• template_preprocess_username
• template_preprocess_user
• views_preprocess_node
• views_preprocess_comment
• template_preprocess_views_view
• template_preprocess_views_view_fields
• template_preprocess_views_view_grouping
• template_preprocess_views_view_field
• template_preprocess_views_view_summary
• template_preprocess_views_view_summary_unformatted
• template_preprocess_views_view_grid
• template_preprocess_views_view_grid_responsive
• template_preprocess_views_view_unformatted
• template_preprocess_views_view_list
• template_preprocess_views_view_rss
• template_preprocess_views_view_row_rss
• template_preprocess_views_view_opml
• template_preprocess_views_view_row_opml
• template_preprocess_views_exposed_form
• template_preprocess_views_mini_pager
• views_ui_preprocess_views_view
• template_preprocess_views_ui_display_tab_setting
• template_preprocess_views_ui_views_listing_table
• template_preprocess_views_ui_display_tab_bucket
• template_preprocess_views_ui_build_group_filter_form
• template_preprocess_views_ui_rearrange_filter_form
• template_preprocess_views_ui_style_plugin_table

Check Twig templates:

• app/core/modules/announcements_feed/templates/announcements-feed-admin.html.twig: announcements_feed/drupal.announcements_feed.page
  - added only if admin
• app/core/modules/system/templates/status-report-grouped.html.twig: core/drupal.collapse
  - nothing to do
• app/core/modules/views/templates/views-view-grid-responsive.html.twig: views/views.responsive-grid
  - only used when this display is used, nothing to do.

@pdureau Are you ok with the proposed resolution?

Only 3 CSS files to remove.

grimreaper → credited pdureau → .

Automatically closed - issue fixed for 2 weeks with no activity.