[API] Add color constants for disabled background and foreground colors [EBZ#548190] ------------------------------------------------------------------------------------ Key: ERT-738 URL: https://issues.jboss.org/browse/ERT-738 Project: Eclipse Release Train Issue Type: Task Components: Platform Reporter: Friendly Jira Robot Assignee: Eric Williams Priority: Major Labels: 4.13_M1, SWT, bzira As part of the discussion for bug 4745, it has been decided that SWT would benefit from defining a disabled background and foreground color constant. Platform specific bugs for this work should be filed separately with this ticket as a blocker.