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A theme controls the visual presentation participants see when they take your study — colors, type, and overall feel — separate from the study’s content and logic.

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Applying a theme

In the Builder, open the appearance/theme controls to set the study’s look. Use Preview to see exactly what a participant will see.
The Design workspace theme editor

The Design → Theme editor: pick a preset and tune colours, with a live sample on the right.

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Why it matters

  • Consistency with your materials or institution.
  • Stimulus fidelity — for social-media or interface studies, a clean, neutral frame keeps the stimulus (not the chrome) the focus.
The Design workspace social-post styling tab

Design → Social styles stimulus blocks — here, the Facebook-style social post participants see.

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Reuse

Saved themes live in the Library → Themes so you can apply the same look across studies rather than re-styling each one.
Theme changes are purely presentational — they never alter which blocks a participant sees or how data is recorded.