logo attribute in vendor xml node marked as "Not used anymore": what to do?

Hi everyone

I started developing a plugin for PhpStorm and I'm developing it in IntelliJ IDEA 14 CE. I'm currently reading/following the various tutorials/articles around your wikis.
I was reading on the IntelliJI IDEA Plugin Structure wiki page that the <vendor> xml node in the plugin.xml can contain a reference to the plugin logo.

When I tried to define the logo though I've noticed that the IDE marks the xml attribute as deprecated. Please see images below:




Does that mean that plugin implementors should not define the logo attribute in the vendor xml node anymore?

Any guidance will be much appreciated :)

Thanks!