More colours for notes icon

Notes for tasks are great. :-)

We use them to write/explain details for a task.

But we would also like to use them to allow the owner of the task to report back about problems etc. Or to add comments on completion (eg about problems he had, why task took longer than expected etc.)

Of course he can do that already now.

But it would be nice to have different colours for the notes - or maybe even more than just one note icon for a task that allow us to easily see, where such special "report back" notes have been added.

As it is now we have to check the notes of each single task "manually", because we cannot see from the list display, what type of notes have been written/added.
michel