If you would like to override the default registration button that appears on your event detail pages, you can upload a new image in your administrative event settings. This image will appear as the registration button for all of your events.
1. Go to Admin > Set Preferences > Event Settings. If you have multiple pages listed at the top of the screen, click /Default.
2. Click open the Features section, and scroll down to the bottom to find the Registration Button Image URL.
3. Click in the box to launch your local files, and choose the image you would like to use. Note that the image will be displayed on your website at 100%, so make sure that you have sized the image appropriately before uploading (most registration buttons look best between approximately 75 and 150 pixels wide).
4. Click Save Settings.