Can Anyone Help me figure out the dataflow of a project

So, I’ve been trying to use the Metronic Theme in React js for the dashboard of a website, but I am really new to this, and moreover the theme is scattered all over the place and I just can’nt wrap my head around what is going around.
The main problem I’m facing is in figuring out why and how the tokens are used in this theme.

It would be great help.