Creative Phone Case Sticker Design Prompts for ‘Caffeine Loading…’ Loading Bar

Generate a series of vector-style, high-contrast ‘Caffeine Loading…’ loading bar stickers for phone cases. The visuals should be clean and minimal, with no shading or gradients, perfect for die-cut sticker formats. Incorporate placeholder text [Text Here] inside or next to the loading bar to allow customization. Designs should focus on bold outlines, clear progress indicators, and a fun caffeine theme, with variations including empty, partial, and full loading states, as well as icons and additional elements for variety.