Opacity control does not work for specific shapes on linux

What steps will reproduce the problem?
1. Start Leonardo R1B0 on Ubuntu Linux
2. Draw rectangle, select it and manipulate opacity with the control that 
appears below the shape. Opacity is properly set on the shape.
3. Draw a polygon and change opacity as in step 2. Opacity is not changed. Same 
for multi-line shapes.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?
Leonardo R1B0 on Ubuntu 10.04

Please provide any additional information below.
~$ java -version
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) Server VM (build 16.3-b01, mixed mode)

~$ uname -a
Linux x 2.6.32-24-generic #42-Ubuntu SMP Fri Aug 20 14:24:04 UTC 2010 i686 
GNU/Linux

Original issue reported on code.google.com by vbekia...@gmail.com on 8 Sep 2010 at 9:23

tonykwok / leonardosketch

Opacity control does not work for specific shapes on linux #15