What is a green hat hacker? Why is all my content themed green?

"A green hat hacker is a newbie in the hacking world. As such, green hat hackers may not be as familiar with all the security mechanisms companies or individuals may be using. Unlike the other hacker categories, they may not be as well-versed with the inner workings of the web." -Some famous public blogger.

/

"I consider myself to be a newbie green hat." -Me!