Google keeps updating its products on a daily basis, this is good but sometimes is hard to keep up with so many changes. In the last Gmail redesign the company added many new enhancements, one of them was the new icon-based toolbar buttons, which many users don’t like, they got used to the old text-based buttons, because they are more descriptive.
The company, thinking that this change was going to benefit users, they also thought on those who will not be pleased with the change, so they added a setting to get the text buttons back in Gmail.
To get the text buttons back on Gmail, do the following:
1. Go to the Gmail’s settings. Click the gear button in the top-right corner of the page and select Settings.
2. From the General tab, look for the option: “Button Labels”, and check Text.
Finally scroll to the bottom of the page and click Save Settings. Then just go back to the inbox and see the old text labels on the toolbar.
Source Gmail