vc_map_get_param_defaults

Filters the default value resolved for an individual shortcode parameter. Called once per parameter when building the defaults array for a mapped shortcode.

Parameters

Parameter	Type	Description
$value	mixed	The resolved default value for the parameter.
$param	array	The full parameter definition array, including keys like param_name, type, value, etc.

Usage

<?php
add_filter( 'vc_map_get_param_defaults', 'my_override_param_default', 10, 2 );

function my_override_param_default( $value, $param ) {
    // Change the default value for a specific parameter
    if ( 'css_animation' === $param['param_name'] ) {
        $value = 'fadeIn';
    }
    return $value;
}

Source

File: include/helpers/helpers.php