A. 1. Double-check the dimensions and format of the images you are uploading to ensure they meet the app's requirements. 2. Use the app's preview feature to see how the image will look before finalizing it. 3. Adjust the brightness and contrast of the images before uploading to improve visibility.

B. 1. Experiment with different image types (e.g., PNG vs. JPEG) to see if that affects the output. 2. If the issue persists, try creating simpler images with fewer colors or details.