Overlay Issue on slider - Timevo theme

Hello @everyone, I am trying to remove the overlay from the sliders on my website, despite changing the opacity of overlay to 0 for the sliders and also adding the code to the header that I found from one of the answers in community it doesn’t work for me, can somebody be kind enough to help in this regard? TIA!
My Store: Foneix.com
Theme: Timevo

Thank you very much for your reply, I added this code previously in my theme.liquid file after the head

.hero-overlay--dark:before, .overlay--dark .slide-image:after, .card-text-overlay--light .image .img:before { background: transparent !important; }

It didn’t worked for me, the main issue I am facing is while reviewing it on the mobile device, thank you for your support again!

Sure please, I definitely want to connect!

Yes, you can reach out to me on contactzaid22@gmail.com or zaidarman@outlook.com

Hi there, I am having a similar problem with the Custom Liquid section. A grayscale overlay is affecting my iFrame and I can not figure out how to remove it. Seems like we’re having similar issues. Did you find a fix?

Thx