The generated images are automatically posted to your Twitter feed. This Extension is limited by its use of the Twitter API. This means that Free users can only post up to 50 Tweets per day.
There is also a button to post the generated image to Twitter.
Copy the link to this repository and install from [install from URL] and reload.
Follow this link to obtain a Twitter API key. Do not forget to add the "Write" privilege from [User authentication settings]. "read and write" or "Read and write and Direct message"
Enter the values obtained from the Twitter Developer Portal in each of the [Settings] > [Auto Tweet] fields.
Turning on "Enable auto tweet" will automatically post the generated images to your Twitter feed.