[safety] New coloring
- make the colors more intuitive (e.g., geen for everything ok or gray for private)
- add a color for elements which are private
(from redmine: issue id 3008, created on 2017-08-02, closed on 2018-02-09)
- make the colors more intuitive (e.g., geen for everything ok or gray for private)
- add a color for elements which are private
(from redmine: issue id 3008, created on 2017-08-02, closed on 2018-02-09)