Mega Web Development Bootcamp with React Bootstrap 5, Redux, and REST API - Customizing NavBar Menu

The video tutorial demonstrates how to remove unnecessary elements like a disabled button and dropdown from a component. It then explains how to change colors using Bootstrap classes, highlighting the use of primary, secondary, and other color classes. Finally, it shows how to replace a button with a Font Awesome icon, ensuring the icon matches the theme by adjusting its color.

What is the significance of using 'primary' in Bootstrap according to the speaker?

What did the speaker do to replace the button with a Font Awesome icon?