hooks/install_themes_tab/#uses) | Source: [ wp-admin/theme-install.php:311 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/theme-install.php#L311-L311)

  * hook  [ additional_capabilities_display ](https://developer.wordpress.org/reference/hooks/additional_capabilities_display/)

Filters whether to display additional capabilities for the user.

Used by [ 0 functions ](https://developer.wordpress.org/reference/hooks/additional_capabilities_display/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/additional_capabilities_display/#uses) | Source: [ wp-admin/user-edit.php:901 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/user-edit.php#L901-L901)

  * hook  [ install_themes_pre_{$tab} ](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/)

Fires before each of the tabs are rendered on the Install Themes page.

Used by [ 0 functions ](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/hooks/install_themes_pre_tab/#uses) | Source: [ wp-admin/theme-install.php:104 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/theme-install.php#L104-L104)

  * class  [ File_Upload_Upgrader ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/)

Core class used for handling file uploads.

Used by [ 0 functions ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/#used-by) | Uses [ 0 functions ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/#uses) | Source: [ wp-admin/includes/class-file-upload-upgrader.php:20 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/class-file-upload-upgrader.php#L20-L141)

  * method  [ File_Upload_Upgrader::__construct() ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/__construct/)

Construct the upgrader for a form.

Used by [ 0 functions ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/__construct/#used-by) | Uses [ 11 functions ](https://developer.wordpress.org/reference/classes/file_upload_upgrader/__construct/#uses) | Source: [ wp-admin/includes/class-file-upload-upgrader.php:54 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/class-file-upload-upgrader.php#L54-L122)

  * method  [ Theme_Upgrader::current_before() ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_before/)

Turns on maintenance mode before attempting to upgrade the active theme.

Used by [ 0 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_before/#used-by) | Uses [ 2 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_before/#uses) | Source: [ wp-admin/includes/class-theme-upgrader.php:686 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/class-theme-upgrader.php#L686-L704)

  * method  [ Theme_Upgrader::current_after() ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_after/)

Turns off maintenance mode after upgrading the active theme.

Used by [ 0 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_after/#used-by) | Uses [ 4 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/current_after/#uses) | Source: [ wp-admin/includes/class-theme-upgrader.php:718 ](https://github.com/WordPress/wordpress-develop/blob/6.5/src/wp-admin/includes/class-theme-upgrader.php#L718-L742)

  * method  [ Theme_Upgrader::delete_old_theme() ](https://developer.wordpress.org/reference/classes/theme_upgrader/delete_old_theme/)

Deletes the old theme during an upgrade.

Used by [ 0 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/delete_old_theme/#used-by) | Uses [ 2 functions ](https://developer.wordpress.org/reference/classes/theme_upgrader/delete_old_theme/#