Uptown theme, color attribute

I'm working on store using Uptown theme, in the home page of the uptown demo store
(this link http://themes.uptown1.nop-templates.com/) when you scroll down to the featured products, every product have color selection underneath of each.

my question is this a feature exist in V4.0 only? because I'm using V3.9 and I can't apply the same feature.

if this feature exist in V3.9, how can I do it using Admin portal only (no coding)?

There isn't any feature in nopcommerce at product box level.

however,you can customize your store same as this feature and logic you should copy from product detail page.

Hope you will understand..!!