Note or not? Visual difference too small

The the difference between the note-available and note-not-available symbols are very small. At a glance I find it hard to pick out the tasks that actually have notes. Could something be done to improve this?
I can think of a couple of ways.

• Use different color when note is available.
• Increase contrast difference between the two icons.
• Only show the note-not-available on mouse over.


Second this.

That would be a small, but valueable enhancement. I have the same challenge, since I often overlook that I have entered a note. Especially on the project entry itself. I often use the note section on the project to write down more details on desired outcome, etc. according to the GTD recommended practice.