Guidelines for customizing biblatex styles

I'll start with a few words of caution. First, while most of the following tips should also be applicable for custom CTAN styles, my focus is on the standard styles that ship with biblatex. Second, these guidelines are about easy-to-medium modifications; for the trickier stuff look at some of the other questions at TeX.sx (or ask your own one). Introduction As newer versions of biblatex were relea