In the Stripe Dashboard, you can customize the splash screen for all of your readers, or set custom splash screens for a specific location so that all readers in that location share the same display.
The image must be:
• JPG, PNG, or GIF format (GIFs are for the BBPOS WisePOS E only)
• Less than 2MB for JPG and PNG
• Less than 4MB for GIF
You can also customize splash screens using the Configuration API.
Custom splash screens are effective after the reader is registered and connected to SDK for the first time.