I have the Shelf theme (and love it!) and the Custom Design upgrade.
I’m trying to figure out the CSS code to change the footer font to white from black, since my background is currently #66666 (so the footer’s kind of illegible).
Also, I’d like to change the color that the menu tabs change when I’m on that page – right now, they change from white to black. If I could either keep them white, or change them to #5ab368, to match the theme I’m going for, that would be great!
I’d suggest using a tool like Firebug (Firefox) or Web Inspector (Chrome and Safari). They give you the power to point and click on different elements of the page, discover the CSS selectors, and even test different style rules “live” on the page.