Color Change Nav Bars

the fix for all things formatting – colors, backgrounds, fonts, etc – is in style.css of your theme:
(this involves learning the basics of css)

this is for the header:

#topnavbar {
	background: #93BBBC url(images/topnav.png);
	width: 960px;
	height: 30px;
	color: #FFFFFF;
	margin: 0px;
	padding: 0px;
	}

for sidebar:

#sidebar h4 {
	background: #86AFB0 url(images/headline.png);
	color: #FFFFFF;
	font-size: 11px;
	font-family: Arial, Tahoma, Verdana;
	font-weight: bold;
	text-transform: uppercase;
	margin: 0px 0px 10px 0px;
	padding: 3px 0px 3px 7px;
	}

for categories:

#content h3 {
	background: #86AFB0 url(images/headline.png);
	color: #FFFFFF;
	font-size: 11px;
	font-family: Arial, Tahoma, Verdana;
	font-weight: bold;
	text-transform: uppercase;
	margin: 0px 0px 10px 0px;
	padding: 3px 0px 3px 7px;
	}

these also have background images which you may need to edit.
(in the /images folder of the theme)

I just didn’t know exactly where in the css.

if you are planning to do more theme tweaking, get familiar with the free tools:

web developer add-on for firefox
or
firebug

both great tools for editing/debugging css and html