Design a simple how-it-works onboarding screen for the todo app named App Name. Arrange the Onboarding Steps in a clear vertical flow, connected by friendly curved arrows that guide the eye from one step to the next. Use minimal flat illustrations beside each step, such as a checklist, a reminder bell and a completed task, with rounded shapes and generous spacing. Render the App Name and every item in Onboarding Steps exactly as written, using clean, highly legible sans-serif typography. Apply the Color Palette consistently across the illustrations, arrows, interface accents and background. Keep the composition uncluttered and welcoming, with a subtle mobile app interface feel rather than a full device mockup. Use the Format.
Use these details:
App Name: "DoneDay"
Onboarding Steps: ["Add a task", "Set a reminder", "Get it done"]
Color Palette: "soft blue, warm yellow, coral and charcoal"
Format: "9:16 vertical mobile screen"
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