How to use a transparent header with collection cards (Horizon Theme)

I’m using the horizon theme, and I want my collection cards to show through the header. I have transparent header selected for my collection page, but that doesn’t seem to be doing anything. This lookbook page is a new template i made under the collections section. I want this page to be able to have a transparent header and also use an inverse color scheme, so you can still see the menu and the icons over the images.

URL: www.eastsidemelrose.com

In Horizon, the transparent header only works for the templates that come with the hero section (by default), this does not include custom collection templates. You can fix this by adding the transparent-header class to the <header> tag in your custom template and making sure your section background has a z-index lower than the z-index of the header . Also, make the text in your header and icons “inverse” in the theme editor.