Gray icon:

• In the upper-right corner of a form, indicates that there is no comment on the form as a whole.
• In the farthest right column of a form item, indicates that there is no comment on the item.

To type a comment, click the icon.

Yellow icon:

• In the upper-right corner of a form, indicates that a comment exists on the form as a whole.
• In the farthest right column of a form item, indicates that a comment exists on the item.

To view or update the comment, click the icon.