Would be nice to have gravity on ball behavior. Sometimes ya just want some bouncing, and physics are overkill. <img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" />
But they are already!
I'm pretty sure most people know what and how the filter thing works. It should never be a replacement for a replace colour for another colour though, it would be quite a waste to have to separate many parts of an object just to change a single colour.
Ekhem <img src="{SMILIES_PATH}/icon_rolleyes.gif" alt=":roll:" title="Rolling Eyes" />