Here are the setting brianj uses:
P mode
Metering CWA
EV -.3 (my default but can be lowered if needed)
Icontrast =AUTO
Contrast = +1
Saturation = 0
Sharpness = 0
Red = 0 (my silver camera) Red = +1 (black camera)
Green = +1 (silver) Green = +2 (black)
Blue = 0 both cameras.
WB = AUTO.
ISO=AUTO
Other picture related setting default.
Credit: http://www.dpreview.com/forums/post/53957748
Charger (same as for ELPH 300) CB-2LV