Customize the participant experience
Brand the pages your participants see: study title, description, logo, colors, font, custom closed message, post-interview redirects.
Participants see a series of pages: the share-link landing, the screener, the call, and a thank-you. Everything they read or click is configurable.
Steps
- Open Settings → Appearance & theme
Click the gear icon in any study page.
- Set the study title and description
These two fields appear on the share-link landing page and registration page:
- External study title: the participant-facing name of your study. It is the same field as Project overview → Study title, so edit it in either place.
- Description: a short summary of what the study is about (max 300 characters). Helps participants decide whether to continue.
- Upload your logo
Upload a PNG, JPG, or similar image (SVG isn't supported; max 4 MB). The logo appears on the landing page, screener, and call join screen.
Strella resizes the image to 320 px on its longer side, which stays sharp at the size participants see it. An animated GIF keeps only its first frame.
A transparent background works on every page. Opaque logos are fine if they match the page background.
- Pick button colors
Two color pickers under Button:
- Button color: background of every primary action button (Continue, Join, Submit).
- Text color: the label color on those buttons.
The preview button in the settings panel updates live as you change colors. Pick a combination with strong contrast: text on top of background needs to be readable.
The interview-type and reward tags on the landing page take a pale tint of your button color. Strella darkens the tag text from the same color until it is readable on the tint, so a light button color gives darker tag text.
- Upload a font (optional)
Under Font, click the pencil and choose Upload font. Upload one font file:
.woff2,.woff,.ttfor.otf, under 1 MB. A sample line shows the font.Participants see it on the share-link landing page, the registration page, the thank-you page and every page of the screener. The call and emails keep the Strella font.
- One file covers every weight. Participants' browsers draw bold titles and labels from that one file, so upload your regular weight.
- Check your font license. Upload only a font your license lets you use on a website. Strella doesn't check.
- A file the browser can't read shows the default font instead, without an error. Open Preview to confirm the font loads.
- Preview the landing page
Click Preview at the top of the Appearance section. The landing page opens full-window with your unsaved title, description, logo, button colors and font.
The preview always shows English text and all three registration fields (first name, last name, email), even when a share link turns one off. You can type in the form, but it doesn't submit. Click Exit preview to return to your settings.
- Write a custom closed message (optional)
Under Settings → Access & scheduling → Custom closed message, write what participants see if they click your share link after the study has closed. Useful for "thanks, we're full: sign up for future studies at [link]" wrap-ups.
- Set per-share-link redirect URLs (optional)
To send participants to a specific URL after the interview, configure redirects per share link. Available destinations:
- After successful interview: for qualified, completed participants.
- After screen-out: for disqualified participants.
- After quota full: for over-quota participants.
- After dropout: for participants who quit mid-call.
Each share link can have its own set. This helps when you have a "customer" link that sends people back to your dashboard and a "panel" link that sends people back to the panel.
The next participant who opens your study sees your branding, and goes to the page you've set when they finish.
Tips
- Test branding on the actual call page, not just in the settings preview. Some color combinations look fine in one context and fail in another.
- The "Redirect URLs (Legacy)" settings tab is deprecated. Configure redirects per share link instead. The legacy fields still work for studies that already use them; in new studies, set redirects on share links.
- For studies you run regularly, set branding once on a template study and duplicate it. Branding doesn't import via the import flow because it's study-level, but duplicating a study preserves it.