Picture modes on S4

Does anyone know what camera settings are changed by the various picture modes on the S4?

Here's what I've managed to deduce by experimenting but it's probably not comprehensive:

Landscape: sets small aperture for max depth of field
Flower: ?
Portrait and Self Portrait: large aperture, +0.3 EV exposure compensation
Surf and Snow: +0.3 EV exposure compensation
Autumn Colours: -0.3 EV exposure compensation
Sunset: -0.3 EV exposure compensation
Night Scene: allows longer shutter speeds maybe?