Bright Everything Will Be Okay Rainbow Fade Phone Sticker Prompts

Design a vibrant, high-contrast vector phone case sticker featuring the phrase [TEXT PLACEHOLDER] with a rainbow fade background. Keep the design simple with flat color bands, no shading or gradients, and a crisp outline suitable for die-cut stickers. Focus on bold, clean lines and a pure white background to ensure the sticker is eye-catching and perfect for printing.