vc_before_init_backend_editor

Fires before the backend editor component is initialized. Use this hook to run custom code or register dependencies before the Vc_Backend_Editor class is instantiated.

Parameters

This action has no parameters.

Usage

add_action( 'vc_before_init_backend_editor', 'wpb_before_backend_editor_init' );

function wpb_before_backend_editor_init() {
    // Load custom assets or register dependencies
    // before the backend editor is created
    wp_enqueue_style( 'my-backend-editor-styles', plugins_url( 'css/backend.css', __FILE__ ) );
}

Source

File: include/classes/core/class-vc-manager.php