Fires before each tab on the Install Plugins screen is loaded.
whitelist_options
Filters the allowed options list.
option_page_capability_{$option_page}
Filters the capability required when using the Settings API.
enable_update_services_configuration
Filters whether to enable the Update Services section in the Writing settings screen.
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enable_post_by_email_configuration
Filters whether the post-by-email functionality is enabled.
available_permalink_structure_tags
Filters the list of available permalink structure tags on the Permalinks settings page.
time_formats
Filters the default time formats.
date_formats
Filters the default date formats.
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default_avatar_select
Filters the HTML output of the default avatar list.
avatar_defaults
Filters the default avatars.
thread_comments_depth_max
Filters the maximum depth of threaded/nested comments.
network_user_new_form
Fires at the end of the new user form in network admin.
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network_user_new_created_user
Fires after a new user has been created via the network user-new.php page.
wpmu_upgrade_page
Fires before the footer on the network upgrade screen.
wpmu_upgrade_site
Fires after each site has been upgraded.