> ## Documentation Index > Fetch the complete documentation index at: https://archie.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Theme > Pick a complete, pre-built visual direction for your app, or generate new alternatives — each one comes with a written rationale. Theme is the fastest way to set every design value at once. Instead of picking a color, then a font, then a corner radius one at a time, you choose a complete look that Archie has already put together and validated. ## Choosing a theme Each theme option is a full package — palette, typography, motion, and density — bundled into one card. Click a theme to apply it. The generated screens in [Screens](/docs/features/design/screens/overview) update immediately. Theme picker showing three complete theme options with palette swatches and written rationale Every theme ships with a short written rationale explaining the reasoning behind it: why that palette, why that type pairing, and how it positions your app relative to competitors in the same space. Read it before picking — it tells you what the theme is optimizing for, not just what it looks like. A different theme selected — Launch Studio's violet palette and editorial serif heading replace the previous theme across the same screen ## Generating alternatives Click **New Theme** to generate additional options beyond the ones Archie starts you with. Each new theme explores a different point in the design space — for example, one alternative might keep the same brand positioning but swap a light, editorial look for a dark, high-contrast one. ## Archiving a theme Themes you are not considering can be archived to keep the list focused. Archiving does not delete anything you have already applied — it just removes the option from the picker. ## After you pick a theme Selecting a theme sets the starting values for every other section in this part of Design: * [Branding](/docs/features/design/branding) * [Feel](/docs/features/design/feel) * [Read](/docs/features/design/read) * [Color](/docs/features/design/color) * [Polish](/docs/features/design/polish) Fine-tune any of them afterward — picking a theme is a starting point, not a lock-in. Changes you make in those sections do not create a new theme entry; they adjust the underlying values directly. ## FAQ Switching to a different theme resets those values to the new theme's defaults, overwriting manual adjustments you made in Branding, Feel, Read, Color, or Polish. Pick a theme close to what you want before fine-tuning. Archie generates a small starting set tailored to your blueprint's positioning. Generate more with **New Theme** whenever you want to explore a different direction.