I'm working with a graphic designer to create some iPhone interface elements, but I'm not a graphics designer myself. So I do not really know how to describe what I'm looking for. I'm afraid of over-doing fancy effects, so I have a few questions:
What effects does an iPhone button typically have? Is it a drop shadow, inner glow, etc? Which ones are most appropriate for a "workhorse" button - the one that will be used frequently versus the one that is merely an option button?
I'm going to include a couple panels that slide on/off screen. Do such panels in general have edge effects applied to them to make them blend in better? If so, what is the name of such effects, is it drop shadow, bevel, etc?
What is the name of effect that may smooth the transition between two rectangular views: one is dark gray, another is black. I'm thinking of a fade-like effect where over 5 pixels or so the colors blend together. How is such effect called?
Is it appropriate to use linear gradients within interface elements? If so, how much of a color difference is not "too much". For example is white to dark gray ok, or should it be subtler - light gray to dark gray?
Thank you for any input or keywords that would help me research this topic better!