Very powerful and customizable framework with several integrated particles

I have made several websites with the gantry 5 framework and themes from rocket theme. I started building joomla websites about 10 years ago (rockettheme is the top provider of joomla templates) and then have moved to almost exclusively to building wordpress websites. What I like is I get the powerful flexibility to build each page layout as needed (similar to a joomla sites) and the ability to add several different particles (slideshows, accordions, tabs, photo galleries and more) that are included in every theme that uses the gantry 5 framework, so I can keep the installation of wordpress 3rd party plugins to a minimum (allowing the site to be easier to support and more stable).