Hi @Angela86
This is Henry from PageFly - Landing Page Builder App
You can try this code by following these steps:
Step 1: Go to Online Store->Theme->Edit code.
Step 2: Search file base.css
Step 3: Paste the below code at bottom of the file → Save
quick-add-modal, .header__icon–menu[aria-expanded=‘true’]::before {
background: #00000073 !important;
}
Hope that my solution works for you.
Best regards,
Henry | PageFly