PurposeFirst screen after sign-up. Signals that both themes are equal, first-class choices — not Settings afterthought.
PreviewMini mockup within each option card — shows real typography and color at micro scale
DefaultDark selected on first render — the Marshall amp reference is the brand identity
NamesMarshall Dark · Orange Vintage — amp references baked into the option names themselves
Live previewTapping an option updates the phone shell theme in real time. The whole screen switches.