title: Eclipse, change popup text background color when hovering the mouse on a keyword
body: <p>Ubuntu 10.04.1 new theme has by default all windows background colors set to black.<br/>
  I don't want to change that.</p>
  
  <p>In Eclipse, the interface didn't change much due to 10.04.1 - except for one annoying thing: <br/>
  when the mouse hovers over a keyword - a variable for instance - the type (...) of that keyword is displayed in a small pop-up window.<br/>
  The problem since 10.04.1, is that the text is in <em>black</em> color while the background is <em>also</em> black.</p>
  
  <p>Is there a way to change that background color <em>in Eclipse</em>?</p>