D13777: KMessageWidget : revert to using highlight colour for Information style (WIP)

[René J.V. Bertin]

rjvbb updated this revision to Diff 36858.
rjvbb added a comment.


  The need for an extra check in `qColorFromSettings()` meant I changed the API to put all tests in there and added a default return value argument. IOW, basically the same API as KConfig has.
  
  I've simplified the information alpha calculation, now looking only at the message background colour intensity. I think that should address the issue with dark themes.

CHANGES SINCE LAST UPDATE
  https://phabricator.kde.org/D13777?vs=36846&id=36858

REVISION DETAIL
  https://phabricator.kde.org/D13777

AFFECTED FILES
  src/kmessagewidget.cpp

To: rjvbb, ngraham, #frameworks
Cc: cfeck, kde-frameworks-devel, michaelh, ngraham, bruns
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