The secondary color complements the main color of your questionnaire. Follow these steps to update it.
Go to the right-hand side of the screen and click on Set Up. This will open the setup panel.
From the setup panel, select Builder to begin customizing your page.
Now, click on Demo to preview your page layout.
At the top of the page, click on the Design section to open the design settings.
Click on the three dots icon in the bottom right-hand corner of the theme you have chosen:
This will open a new section. Click on Edit to customize the theme settings.
On the left-hand side, you’ll see a menu. Scroll down until you find the Color category.
Click on the paint palette icon next to the Questionnaire background subcategory to open the color picker.
Select your desired color visually or enter a Primary Hex or RGB code for an exact color match.
Choose a secondary color that complements your main color and creates a harmonious design for your questionnaire.