wp-admin/includes/class-custom-image-header.php:1120Displays the page based on the current step.
public function admin_page() { if ( ! current_user_can( 'edit_theme_options' ) ) { wp_die( __( 'Sorry, you are not allowed to customize headers.' ) ); } $step = $this->step(); if ( 2 === $step ) { $this->step_2(); } elseif ( 3 === $step ) { $this->step_3(); } else { $this->step_1(); } }Introduced in 2.1.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-custom-image-header.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.