CSS to replace the section name with the logo:
.surveysparrow-survey-container--classic-form .ss_classic_top_bar .ss_classic_top_bar_section_details h1{
width: 100%;
}
.surveysparrow-survey-container--classic-form .ss_classic_top_bar .ss_classic_top_bar_section_details p{
font-size: 0px !important;
position:relative;
width: 100%;
height: 48px;
}
.surveysparrow-survey-container--classic-form .ss_classic_top_bar .ss_classic_top_bar_section_details p:after{
content:'';
position: absolute;
top:50%;
left:50%;
width: 110px;
height: 72px;
transform: translate(0%, -60%);
background-size: contain;
background-repeat: no-repeat;
background-image:url(https://static.surveysparrow.com/application/production/1678270840552__69061ff193528d2e8c23269f4e8eec3eb7ac4d69f3ce86eb1cbc590dfd7b__abstract_backgrounds_pattern_537133.jpeg);
}