Go to your specific Live Editor >> click on Page Setting >> Other Scripts >> Custom CSS >> look for the CSS code below to change the background color:
/* For Background image Overlay Color*/
.opacity-background {
background:rgba(64,19,79,0.5);
}
/* For Feature Box Opacity Color*/
.white-border-opacity {
border: 5px solid white;
background:rgba(64,19,79,0.5);
}
Before
After
Important
You will have to change the RGB color and the 0.5 opacity. You can find the RGBA color here: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Colors/Color_picker_tool