Which UML Tool has been used to create this diagram?

[admin]

I would like to know which UML Sofware has been used to create the UML Diagram on the Wordpress Developper Website : <a href="http://codex.wordpress.org/images/8/83/WP_27_dbsERD.png" rel="nofollow noreferrer">http://codex.wordpress.org/images/8/83/WP_27_dbsERD.png</a>

<img src="

https://imgur.com/gfkWt

" alt="alt text">

Thanks!