Email's icons

When you signin in to your gmail's account, there's some button like :

functions :

1. Inbox = place to check your inbox

2. Starred = where you can find your favorite (starred) email

3. Important = where you can find important emails, usually those that has file attached

4. Sent mail = where you can find your email that has been sent

5. Drafts = your saved email/email that hasn't been sent

And when you compose email, this will occur :

at the bottom, there's only 4 icon, however, when you click this button :

 

These icon will be added :

1. Send Button = to send

2. A = to edit the formatting

3. to attach files

4. insert files using drive

5. insert photos

6. Insert link

7. insert emoticons

Sorry for few pics, bad connection