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theme_mod_(name) filter-hook . WP 2.2.0

Filters the theme modification, or 'theme_mod', value.

The dynamic portion of the hook name, $name, refers to the key name of the modification array. For example, 'header_textcolor', 'header_image', and so on depending on the theme options.


add_filter( 'theme_mod_(name)', 'filter_function_name_9911' );
function filter_function_name_9911( $current_mod ){
	// filter...

	return $current_mod;
The value of the current theme modification.


Since 2.2.0 Introduced.

Where the hook is called

wp-includes/theme.php 1018
return apply_filters( "theme_mod_{$name}", $mods[ $name ] );
wp-includes/theme.php 1031
return apply_filters( "theme_mod_{$name}", $default );

Where in WP core the hook is used WordPress

wp-includes/blocks/site-logo.php 109
add_filter( 'theme_mod_custom_logo', '_override_custom_logo_theme_mod' );
wp-includes/class-wp-customize-setting.php 367
add_filter( "theme_mod_{$id_base}", array( $this, '_preview_filter' ) );
wp-includes/class-wp-customize-setting.php 371
add_filter( "theme_mod_{$id_base}", $multidimensional_filter );