Set Default Highlight Colour

/**

 * NOTE: This snippet will not work in versions of Charitable prior to 1.2.

 *

 * Set the default colour used by Charitable.

 *

 * @return  string

 */

function en_set_default_highlight_colour() {

    return '#123456';

}

add_filter( 'charitable_default_highlight_colour', 'en_set_default_highlight_colour' );