How to theme / style Imagepicker output?

First of all: thanks for a Splendid module! Imagepicker is versatile, and feels a bit like a Swiss knife for image handling.
There 's one thing, though, which I can't figure out. I can insert an image in my text all right, and I can also include the title and the description text. But I can't figure out where I can 'beautify' my title and description. They show up in between the text of my node, looking just like all other text, and they don't look at all like an image caption or like a 'regular' descriptive couple of lines belonging to an illustration.
I went through the Issues here, and I found a lot on theming the admin part of Imagepicker, but not the output part, and that's what I'm after.
Question: how can I put (for instance) the title on top of my image, and how can I put the description below it? Is there a template which I missed, or some setting here or there? If it has to be done with css, that's fine too, but where do I find the classes which Imagepicker inserts for displaying things in the finished node?