[WordPress]MW WP Form captchaのスタイル変更サンプル

functions.php

add_filter(
    'mwf-captcha-background-color-rgb',
    function( $rgb ) {
        return array( 255, 255, 255 );
    }
);

add_filter(
    'mwf-captcha-text-color-rgb',
    function( $rgb ) {
        return array( 0, 0, 0 );
    }
);

add_filter(
    'mwf-captcha-scratch-color-rgb',
    function( $rgb ) {
        return array( 255, 255, 255 );
    }
);

add_filter(
    'mwf-captcha-line-color-rgb',
    function( $rgb ) {
        return array( 255, 255, 255 );
    }
);