Copy the Alert Box widget URL, go to the your Twitch Channel and click the About tab.
When you are in the About section, click to enable Edit Panels.
Next, you will find a new Twitch panel where you can customize the image as well as the URL for the image. Paste the Razer Tipstream widget URL here. Click Submit to save your inputs.
Disable Edit Panels and test your new panel by clicking on the image or link you just saved.