Hi there,
You have this CSS in Appearance > Customize > Additional CSS:
.inside-right-sidebar ul li{
text-align:center;
padding-top:6px;
padding-bottom:6px;
background-color:#0c0c0d;
margin-top:3px;
margin-bottom:3px;
}
The background-color:#0c0c0d;
causes the dark background.
You also have this CSS as well –
.inside-right-sidebar ul a {
color: #ffffff !important;
}
This causes the font to change color to white. Remove this so it doesn’t change to white.