This site was created through coding, not google site, aka, the lazy way. I coded the site on a computer program called "Adobe Dreamweaver".
I used over 200 lines of code to create the site you've seen. Along with the coding also created the backgrounds. The backgrounds you've seen was made in Photoshop using a tool called "Gradient". I chose the colors to use and began playing around till of found just the right one. Each page has a different background. Each went through several changes and tries. After over a week of this, these are the results:
To see all of the code used: