2 Questions in products page

Hi, I am trying to copy 2 things from the bottom screenshot.

1. They seem to have “category” within the attribute. For exmaple: they have Sizes and then they have adult or child then they have the variables. Instead of having just Sizes and then 10 different variables. How would this be done with this theme? I am using virtue premium theme 1.

2. Color swatches, they have actual color swatches of its color instead of written “red” “blue” etc. I understand that this needs plugins, I wanted to make sure this plugins are supported with this theme before I install them, I am worried that because this theme already have a setting where you could change to buttons instead of default dropdown, some how this will conflict with the plugins.

here is the link of the site for the above screenshot

thank you.