Ability to use colours by user logged on when typing text

[Anthony]

A user group is assigned to a colour(blue, red). Whn a user is using the editor (the system know the user and the assigned colour, have the editor assign the co,lout to the typed text. This would be very useful for dialoges between two groups who are making changes to the text in the editor. Each group will be able to easily see the other group's changes highlighted in the assigned colour

[Jakub Ś]

Editor is loaded in browser with all its settings. If system knows user and his color I think this should be done by application. Page should use some server side tag that gets evaluated to text color when page loads.