eg. configure battery monitor and switch between general and "keyboard shortcuts" The title changes directly. The contents slide in from the right I don't care which we one do, but the inconsistency looks weird.
Agreed on both counts.
IMHO slide everything is the best way to go eye-candy-wise.
...oh, and also if we mean changing between the pages on a left sidebar, maybe have it so the slide is vertical to signify transitioning from pages that're on the left sidebar.
A vertical slide would indeed make more visual sense given that these pages are presented as a vertical tab bar.
The best way is to respect when the user has disabled user interface animations.
Looks like this got fixed recently by removing the swipe effect.