Is it possible to configure Oracle SQL Developer v 4.03 to automatically display tables while I'm typing in names like in PL\SQL Developer?

Second question: How to make output grid look like PL/SQL Developer? Is it possible?

Is it possible to change default colors in zebra output? I have enabled 'Zebra pattern'
Preferences->Database->Worksheet->Grid in checker board or Zebra pattern
...but default colors are so...ugly. It would be great to change also default NULL values (change field color and (null) to just NULL). Could you add option to set user's color for NULL and zebra coloring? What if I want to use magenta or cyan?