Hi Antje,
Please open custom.css file then add
.masthead .masthead-bg:before {
background: none;
content: "";
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
z-index: 3;
opacity: 0.95;
filter: alpha(opacity=95);
}
then save and recheck.
NOTE: If you disable the “blue overlay” background color, you need to change the color for title and description to make theme more visible
e.g:
.masthead .jamasshead .jamasshead-title {
font-size: 56px;
margin-top: 0;
font-weight: 400;
z-index: 2;
color: #29739d
position: relative;
}
.masthead .jamasshead .jamasshead-description {
font-weight: 300;
letter-spacing: 1px;
z-index: 2;
color: #29739d
position: relative;
}
just change the color match with your needs