What can be used to customize the design of a survey?

The theming tools are specifically designed for customizing the visual aspects of a survey. These tools allow users to change the overall look and feel, including colors, font styles, and layout options to ensure that the survey aligns with branding or aesthetic preferences. By using theming tools, a survey creator can enhance the respondent's experience and potentially increase engagement by making the survey visually appealing.

While survey options provide general settings for the survey and response sets relate to the types of answers that can be given by participants, they do not directly pertain to the visual customization of the survey itself. Quotas are used to manage sample sizes and ensure the representation of different groups in the data but do not influence the design of the survey. Therefore, the theming tools are the appropriate choice for customizing the design of a survey.