You can express your appreciation by adding stars to the contributing project members. Let's try clicking the star icon in the comment section to add a star.
To check who gave you a star, hover over the star icon. The icons of everyone who gave a star will be displayed.
To add a star, click star icon once.
To specify which part of the comment you think great, you can highlight a part of the text and add star precisely to the part.
The selected texts are shown when you mouse over the star.
When you mouse over the star you've added, it will change to . You can remove the star by clicking it.