“How can I change the appearance of my theme?”
All my themes include a theme options panel that allow you to change the main appareance of your theme.
Keep in mind that I can't provide support for further customizations.
However, here is a tip that may be helpful.
Specifically, let's say you want to know how to change a specific styling element (ie: changing font from black to red), but you can't find the corresponding line in the CSS.
I highly recommend to use your browser code inspector*.
In short, this tool will allow you to quickly find an element in the design and "inspect it" by Right Clicking it, revealing the CSS that's styling it and providing you with an exact location in the template where you can make your own edits and customizations.
* For chrome, this tool is enabled by default. Simply right click on an element and select "Inspect element"
For Safari, you need to enable the developper tool first.
For Firefox, you'll need to get an addon: Firebug. It doesn't need any configuration. Just click the obvious links and Firefox will install it and restart.