@somekyleguy: Wow so many questions at a time.
1. make the grey background transparent to show the main background.
— Add the following CSS in “Appearance => Theme Options => Custom CSS” box.
#page, #main {
background-color: transparent;
}
2. close the gaps between all the content boxes and widget boxes (about half)
— Add the following CSS in “Appearance => Theme Options => Custom CSS” box.
.hentry, .no-results, #author-info, #disqus_thread, #content .error404 {
margin-bottom: 1em;
}
It is not recommend to change the distance between the sidebar and content.
3. round the corners of the footer box off to match all other content boxes
— Add the following CSS in “Appearance => Theme Options => Custom CSS” box.
#site-generator {
-moz-border-radius: 5px;
border-radius: 5px;
}
4. remove top and bottom grey lines on the footer.
— Add the following CSS in “Appearance => Theme Options => Custom CSS” box.
#colophon, #site-generator { border: none; }
5. make the footer #fff
— the footer is already #fff