wp-includes/class-wp-theme-json.php:3834Returns a valid theme.json as provided by a theme.
array public function get_data() { $output = $this->theme_json; $nodes = static::get_setting_nodes( $output ); /** * Flatten the theme & custom origins into a single one. * * For example, the following: * * { * "settings": { * "color": { * "palette": { * "theme": [ {} ], * "custom": [ {} ] * } * } * } * } * * will be converted to: * * { * "settings": { * "color": { * "palette": [ {} ] * } * } * } */ foreach ( $nodes as $node ) { foreach ( static::PRESETS_METADATA as $preset_metadata ) { $path = $node['path']; foreach ( $preset_metadata['path'] as $preset_metadata_path ) { $path[] = $preset_metadata_path; } $preset = _wp_array_get( $output, $path, null ); if ( null === $preset ) { continue; } $items = array(); if ( isset( $preset['theme'] ) ) { foreach ( $preset['theme'] as $item ) { $slug = $item['slug']; unset( $item['slug'] ); $items[ $slug ] = $item; } } if ( isset( $preset['custom'] ) ) { foreach ( $preset['custom'] as $item ) { $slug = $item['slug']; unset( $item['slug'] ); $items[ $slug ] = $item; } } $flattened_preset = array(); foreach ( $items as $slug => $value ) { $flattened_preset[] = array_merge( array( 'slug' => (string) $slug ), $value ); } _wp_array_set( $output, $path, $flattened_preset ); } } /* * If all of the static::APPEARANCE_TOOLS_OPT_INS are true, * this code unsets them and sets 'appearanceTools' instead. */ foreach ( $nodes as $node ) { $all_opt_ins_are_set = true; foreach ( static::APPEARANCE_TOOLS_OPT_INS as $opt_in_path ) { $full_path = $node['path']; foreach ( $opt_in_path as $opt_in_path_item ) { $full_path[] = $opt_in_path_item; } /* * Use "unset prop" as a marker instead of "null" because * "null" can be a valid value for some props (e.g. blockGap). */ $opt_in_value = _wp_array_get( $output, $full_path, 'unset prop' );Introduced in 6.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-theme-json.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.