Description of problem:
When clicking an element in the navigation tree, the highlight
background obscures the text, but only on text that is rendered in
colors. Black text is inverted to white when clicked.

Version-Release number of selected component (if applicable):
system-config-cluster-0.9.5-1.0

Steps to Reproduce:
1. Click any of the gross-navigation elements that are rendered
   in color (for example, Cluster Nodes, Fence Devices,
   Failover Domains, Resources, and Resource Groups).
2. Observe highlighted area (both when GUI window is and is
   not selected).
  
Actual results:
The text on the selected element is very difficult to read.

Expected results:
High contrast between highlight background color and text to make it
easy to read the text.