protected function loadInternalFonts(): void
    {
        $path = \dirname(__DIR__) . '/BuiltIn/Resources/art-fonts/';
        $group = self::INTERNAL_GROUP;

        foreach (self::$internalFonts as $font) {
            $this->fonts[$group][$font] = $path . $font . '%s.txt';
        }

        $this->groups[$group] = $path;
    }