Hey Al!
I’ve done this a number of times, and also agree that hiding the cover image should be part of the themes.
Here’s what to do:
Create an override theme folder, if you haven’t already. You’ll want to override config.json (mandatory) and assets>css>main.css / Custom CSS.
In your override folder, open config.json in the editor of your choice. Search for “postConfig”, and edit the “featuredImageWidth” section so that it matches below:
"postConfig": [
{
"name": "featuredImageWidth",
"label": "Featured Image width",
"value": "post__image--wide",
"type": "select",
"options": [
{
"label": "None",
"value": "post__image--none"
},
{
"label": "Normal",
"value": "post__image--normal"
},
{
"label": "Wide",
"value": "post__image--wide"
},
{
"label": "Full",
"value": "post__image--full"
}
]
},
Essentially, you’ll want to add the { “label”: “None”, “value”: “post__image–none” } part.
Next, you can either edit the main.css OR add some custom CSS from inside the Publii app (Tools & Plugins > Custom CSS). In either case, you’ll want to add the following:
.post__image--none {
display: none;
}