that's the point, there's nothing to show.  The option is gone from the preferences.  There used to be an option where you could touch anywhere on the screen with a finger and it would color sample what was under your pencil.  That no longer exists, or if it does I can't find it. 

Art Studio's smoothing features are much better than the competition.  Please let us toggle it on and off for the lasso tool so we can draw smooth selections. 

Love this app - first ipad art app that makes me feel I can do my pro work on it. 

Couple of suggestions to consider that would make this app sing:
1 - being able to record an action, and then add that action to the quick menu or perhaps an action panel.  I would love the ability to automate things I do ALL the time, like creating a new layer and setting the blend mode.  Or selecting an area and copy and paste all merged into a new layer.  Having a single button press for tasks like this would make painting much more fluid.
2 - a way to quickly flick between a few brushes, or recently used brushes.  This might be a panel with a list that automatically populates, or maybe even a gesture.  The brush panel takes up a lot of room and I often don't like having it open when painting.  What if there was an option for a truncated brush panel with smaller icons?  That might work as well. 

thanks for listening, keep up the great work!!

using iOS version...

I really enjoy using this software with a keyboard, but please let us map a key to brush size.  Similar to Photoshop when you hold down alt and move the pencil left or right to resize your brush.