Title: Theme | Page 7 of 8 | Developer.WordPress.org --- # @package: Theme * function[set_theme_mod()](https://developer.wordpress.org/reference/functions/set_theme_mod/) * Updates theme modification value for the active theme. * Used by [15 functions](https://developer.wordpress.org/reference/functions/set_theme_mod/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/set_theme_mod/#uses) | Source: [wp-includes/theme.php:1108](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1108-L1129) * function[header_image()](https://developer.wordpress.org/reference/functions/header_image/) * Displays header image URL. * Used by [0 functions](https://developer.wordpress.org/reference/functions/header_image/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/header_image/#uses) | Source: [wp-includes/theme.php:1498](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1498-L1504) * hook[pre_set_theme_mod_{$name}](https://developer.wordpress.org/reference/hooks/pre_set_theme_mod_name/) * Filters the theme modification, or ‘theme_mod’, value on save. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_set_theme_mod_name/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_set_theme_mod_name/#uses) | Source: [wp-includes/theme.php:1124](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1124-L1124) * function[get_uploaded_header_images()](https://developer.wordpress.org/reference/functions/get_uploaded_header_images/) * Gets the header images uploaded for the active theme. * Used by [6 functions](https://developer.wordpress.org/reference/functions/get_uploaded_header_images/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/get_uploaded_header_images/#uses) | Source: [wp-includes/theme.php:1513](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1513-L1556) * function[remove_theme_mod()](https://developer.wordpress.org/reference/functions/remove_theme_mod/) * Removes theme modification name from active theme list. * Used by [5 functions](https://developer.wordpress.org/reference/functions/remove_theme_mod/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/remove_theme_mod/#uses) | Source: [wp-includes/theme.php:1141](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1141-L1158) * function[get_custom_header()](https://developer.wordpress.org/reference/functions/get_custom_header/) * Gets the header image data. * Used by [3 functions](https://developer.wordpress.org/reference/functions/get_custom_header/#used-by) | Uses [8 functions](https://developer.wordpress.org/reference/functions/get_custom_header/#uses) | Source: [wp-includes/theme.php:1567](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1567-L1601) * function[remove_theme_mods()](https://developer.wordpress.org/reference/functions/remove_theme_mods/) * Removes theme modifications option for the active theme. * Used by [1 function](https://developer.wordpress.org/reference/functions/remove_theme_mods/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/remove_theme_mods/#uses) | Source: [wp-includes/theme.php:1165](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1165-L1175) * function[register_default_headers()](https://developer.wordpress.org/reference/functions/register_default_headers/) * Registers a selection of default headers to be displayed by the custom header admin UI. * Used by [0 functions](https://developer.wordpress.org/reference/functions/register_default_headers/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/register_default_headers/#uses) | Source: [wp-includes/theme.php:1613](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1613-L1617) * function[get_header_textcolor()](https://developer.wordpress.org/reference/functions/get_header_textcolor/) * Retrieves the custom header text color in 3- or 6-digit hexadecimal form. * Used by [2 functions](https://developer.wordpress.org/reference/functions/get_header_textcolor/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_header_textcolor/#uses) | Source: [wp-includes/theme.php:1184](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1184-L1186) * function[unregister_default_headers()](https://developer.wordpress.org/reference/functions/unregister_default_headers/) * Unregisters default headers. * Used by [0 functions](https://developer.wordpress.org/reference/functions/unregister_default_headers/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/unregister_default_headers/#uses) | Source: [wp-includes/theme.php:1634](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1634-L1645) * function[header_textcolor()](https://developer.wordpress.org/reference/functions/header_textcolor/) * Displays the custom header text color in 3- or 6-digit hexadecimal form (minus the hash symbol). * Used by [0 functions](https://developer.wordpress.org/reference/functions/header_textcolor/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/header_textcolor/#uses) | Source: [wp-includes/theme.php:1193](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1193-L1195) * function[get_background_image()](https://developer.wordpress.org/reference/functions/get_background_image/) * Retrieves background image for custom background. * Used by [6 functions](https://developer.wordpress.org/reference/functions/get_background_image/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_background_image/#uses) | Source: [wp-includes/theme.php:1847](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1847-L1849) * function[display_header_text()](https://developer.wordpress.org/reference/functions/display_header_text/) * Whether to display the header text. * Used by [2 functions](https://developer.wordpress.org/reference/functions/display_header_text/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/display_header_text/#uses) | Source: [wp-includes/theme.php:1204](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1204-L1211) * function[get_header_image()](https://developer.wordpress.org/reference/functions/get_header_image/) * Retrieves header image for custom header. * Used by [7 functions](https://developer.wordpress.org/reference/functions/get_header_image/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/get_header_image/#uses) | Source: [wp-includes/theme.php:1233](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1233-L1259) * function[_get_random_header_data()](https://developer.wordpress.org/reference/functions/_get_random_header_data/) * Gets random header image data from registered images in theme. * Used by [2 functions](https://developer.wordpress.org/reference/functions/_get_random_header_data/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/_get_random_header_data/#uses) | Source: [wp-includes/theme.php:1398](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1398-L1438) * function[get_random_header_image()](https://developer.wordpress.org/reference/functions/get_random_header_image/) * Gets random header image URL from registered images in theme. * Used by [2 functions](https://developer.wordpress.org/reference/functions/get_random_header_image/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_random_header_image/#uses) | Source: [wp-includes/theme.php:1447](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1447-L1455) * function[get_theme_root_uri()](https://developer.wordpress.org/reference/functions/get_theme_root_uri/) * Retrieves URI for themes directory. * Used by [3 functions](https://developer.wordpress.org/reference/functions/get_theme_root_uri/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/get_theme_root_uri/#uses) | Source: [wp-includes/theme.php:647](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L647-L683) * hook[theme_root_uri](https://developer.wordpress.org/reference/hooks/theme_root_uri/) * Filters the URI for themes directory. * Used by [1 function](https://developer.wordpress.org/reference/hooks/theme_root_uri/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/theme_root_uri/#uses) | Source: [wp-includes/theme.php:682](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L682-L682) * function[get_raw_theme_root()](https://developer.wordpress.org/reference/functions/get_raw_theme_root/) * Gets the raw theme root relative to the content directory with no filters applied. * Used by [7 functions](https://developer.wordpress.org/reference/functions/get_raw_theme_root/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_raw_theme_root/#uses) | Source: [wp-includes/theme.php:697](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L697-L723) * function[locale_stylesheet()](https://developer.wordpress.org/reference/functions/locale_stylesheet/) * Displays localized stylesheet link element. * Used by [0 functions](https://developer.wordpress.org/reference/functions/locale_stylesheet/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/locale_stylesheet/#uses) | Source: [wp-includes/theme.php:730](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L730-L743) * function[switch_theme()](https://developer.wordpress.org/reference/functions/switch_theme/) * Switches the theme. * Used by [3 functions](https://developer.wordpress.org/reference/functions/switch_theme/#used-by) | Uses [21 functions](https://developer.wordpress.org/reference/functions/switch_theme/#uses) | Source: [wp-includes/theme.php:760](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L760-L879) * hook[switch_theme](https://developer.wordpress.org/reference/hooks/switch_theme/) * Fires after the theme is switched. * Used by [1 function](https://developer.wordpress.org/reference/hooks/switch_theme/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/switch_theme/#uses) | Source: [wp-includes/theme.php:878](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L878-L878) * function[validate_current_theme()](https://developer.wordpress.org/reference/functions/validate_current_theme/) * Checks that the active theme has the required files. * Used by [1 function](https://developer.wordpress.org/reference/functions/validate_current_theme/#used-by) | Uses [9 functions](https://developer.wordpress.org/reference/functions/validate_current_theme/#uses) | Source: [wp-includes/theme.php:901](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L901-L951) * hook[validate_current_theme](https://developer.wordpress.org/reference/hooks/validate_current_theme/) * Filters whether to validate the active theme. * Used by [1 function](https://developer.wordpress.org/reference/hooks/validate_current_theme/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/validate_current_theme/#uses) | Source: [wp-includes/theme.php:909](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L909-L909) * hook[wp_cache_themes_persistently](https://developer.wordpress.org/reference/hooks/wp_cache_themes_persistently/) * Filters whether to get the cache of the registered theme directories. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/wp_cache_themes_persistently/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_cache_themes_persistently/#uses) | Source: [wp-includes/theme.php:487](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L487-L487) * function[get_theme_mods()](https://developer.wordpress.org/reference/functions/get_theme_mods/) * Retrieves all theme modifications. * Used by [4 functions](https://developer.wordpress.org/reference/functions/get_theme_mods/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/get_theme_mods/#uses) | Source: [wp-includes/theme.php:1029](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1029-L1051) * function[get_theme_root()](https://developer.wordpress.org/reference/functions/get_theme_root/) * Retrieves path to themes directory. * Used by [13 functions](https://developer.wordpress.org/reference/functions/get_theme_root/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/get_theme_root/#uses) | Source: [wp-includes/theme.php:600](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L600-L630) * function[get_theme_mod()](https://developer.wordpress.org/reference/functions/get_theme_mod/) * Retrieves theme modification value for the active theme. * Used by [25 functions](https://developer.wordpress.org/reference/functions/get_theme_mod/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/get_theme_mod/#uses) | Source: [wp-includes/theme.php:1067](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L1067-L1096) * hook[theme_root](https://developer.wordpress.org/reference/hooks/theme_root/) * Filters the absolute path to the themes directory. * Used by [1 function](https://developer.wordpress.org/reference/hooks/theme_root/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/theme_root/#uses) | Source: [wp-includes/theme.php:629](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L629-L629) * hook[template](https://developer.wordpress.org/reference/hooks/template/) * Filters the name of the active theme. * Used by [1 function](https://developer.wordpress.org/reference/hooks/template/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/template/#uses) | Source: [wp-includes/theme.php:325](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/theme.php#L325-L325) [Previous Page](https://developer.wordpress.org/reference/package/theme/page/6/?output_format=md) [1](https://developer.wordpress.org/reference/package/theme/?output_format=md) … [5](https://developer.wordpress.org/reference/package/theme/page/5/?output_format=md) 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