blogben/src/Markdown/ColorExtension.php

<?php

namespace App\Markdown;

use League\CommonMark\Environment\EnvironmentBuilderInterface;
use League\CommonMark\Extension\ExtensionInterface;

class ColorExtension implements ExtensionInterface
{
    public function register(EnvironmentBuilderInterface $environment): void
    {
        $environment->addInlineParser(new ColorParser(), 200);
        $environment->addRenderer(ColorText::class, new ColorRenderer());
    }
}