The "Slideshow (Joomla)" particle looks and works in absolutely the same way as the default "Slideshow" particle.
The difference is that "Slideshow (Joomla)" fetches Joomla articles automatically, while in "Slideshow" the user creates the content manually.
You will find more details about the "Slideshow (Joomla)" particle in the demo video on the documentation page.

The "Slideshow (WordPress)" particle looks and works in absolutely the same way as the default "Slideshow" particle.
The difference is that "Slideshow (WordPress)" fetches WordPress posts automatically, while in "Slideshow" the user creates the content manually.
You will find more details about the "Slideshow (WordPress)" particle in the demo video on the documentation page.

The "Slideshow (Grav)" particle looks and works in absolutely the same way as the default "Slideshow" particle.
The difference is that "Slideshow (Grav)" fetches Grav content automatically, while in "Slideshow" the user creates the content manually.
You will find more details about the "Slideshow (Grav)" particle in the demo video on the documentation page.