I would like some start up advice please.
I am fairly experienced at developing websites based on starter WP themes. I have used Starkers and Bootstrap (at basic level) as my framework, I have only very recently started to peep over at LESS but hope to use Roots to help me step up and develop my workflow
1.Is it essential to know LESS to work on your theme?
2.Do I have to install Grunt.?
3.What comes with Bootstrap out of the box? What is the procedure for removing adding components. Can I down load my own customised bootstrap on top of the Roots Theme?
Edits: Minor clarifications, and further introduction.