Donation Panel Setup
From the Twitch homepage, click your profile icon in the top right to open the options menu.
Click Channel to go to your Twitch channel.
Click the About tab under the video player.
Click the Edit Panels under the About Me section.
Click the large gray plus symbol.
Click Add a Text or Image Panel.
Click Add Image.
Right click the panel image below, and click Save image as....

Click the upload box to select the panel image, or drag it over from your file browser.
Fill out the description with a message similar to this, edited to your liking: Donate to Mermaids by clicking this panel!
Consider adding an Accessible Image Description to enable screen readers to describe this panel!
Fill in the Image Links to box with your donation URL
Click Submit and you're done! Click Edit Panels to see how it looks.