I just installed the Eclipse color theme plugin and when I go to "Preferences-General-Appearance-Color Theme" and choose a new theme it does not change my colors. I am testing this in both the "Web" and "JavaScript" perspectives.
Currently my background color is black (which it was not before, and I in fact have no idea how it got switched). I just want to switch it back to a typical white theme.
Ok, I figured this out. I also have Aptana Studio installed in my Eclipse. Under the settings for Aptana Studio is a category called "Themes". When I changed the theme here my colors finally changed. This also explains why my screen switched to a black background. It must have been the default color theme for Aptana when I installed it. I guess the Aptana Studio themes override the default Eclipse color settings and also the "Color Theme" plugin I installed.