Bootstrap Challenge area

Bootstrap: Taste the Bootstrap Button Color Rainbow:

I have possibly an odd question, I am boggled on the button that is part of the challenge with a class as primary and all this is clear on the classes of them and so on, its the color of the button is blue and I do not know where this is set to be the main color of the app? where is tis located? If i wanted to change the button color, how would I do this? More importantly I really need to know why is the color of the button blue

Welcome to the forums @zendo425.

The easiest answer to your question is to have you look at this part of Bootstrap’s Documentation. FCC touches on BS so your best reference is their documentation to familiarize yourself deeper.
And yes, you can override their colors again it’s best to refer to their doc.

Because most people don’t have the curriculum, in the future,

If you have a question about a specific challenge as it relates to your written code for that challenge, just click the Ask for Help button located on the challenge. It will create a new topic with all code you have written and include a link to the challenge also. You will still be able to ask any questions in the post before submitting it to the forum.

Thank you.