10-17-2011 / Phil

Short Description: Rpl Editor: Text Color Improvements
Bug Number: 5091
Release notes (y/n): Yes
For Release Nums: 6.1

Gnats 5091: Default RPL text color is hard to read.

Note: Because of user-settings-based persistence of the RPL color settings,
the factory defaults are applied ONLY ONCE on each machine, unless the
corresponding entries in the REGISTRY are manually cleared.

With that said, for the second requested change in this Gnats entry,
the color for User-Defined functions was changed from BLUE to BROWN.

The first requested change was to change the "Selected Background" default
color to a light color -- instead of BLUE.  But after a discussion with
David, we instead decided to force the FOREGROUND (TEXT) SELECTION COLOR
to be either WHITE or BLACK (dynamically computed) to contrast with
whatever Selected Background color the user has configured. (The default
Seleted Bacground color is still BLUE).

The factory defaults (not called that in the user interface, which doesn't
actually provide a way for the user to revert to these defaults) are now
defined in this new method: RplDlgMgr::setDefaultColors().

Changes are in files:
  QtRpl/RplDisplaySettingsDlg.cpp
  QtRpl/RplDlgMgr.cpp
  QtRpl/RplDlgMgr.hpp

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