Hello olivier,
We need to change it in the theme code for background color. We will update it as soon as possible.
So, for the quick work, please paste the following simple CSS code to change the “box-container” and “back-to-top section” background color. Please, go to Admin Dashboard > Appearance > Customize > Theme Options > Custom CSS
.box-container .box-inner:hover .box-content,
.box-container .box-inner:focus .box-content,
.box-container .box-inner:active .box-content,
.wrap-team .box-content-text, .wrap-team .box-content-text:visited{
background-color: #028484; /* desire background color*/
}
.evision-back-to-top {
background: #028484; /* desire background color*/
}
.evision-back-to-top:before{
background: #016161; /* desire hover background color*/
}
Thanks,
eVision Themes
Support Team