post image only on summary page

Hi there,

If you simply want to hide the image on the post, you can use this in the Appearance > Customize > Additional CSS area of your site:

.entry-hero .post-thumbnail img{
    visibility: hidden;
}

If you want to make a few other changes to remove the black area and make the post titles black on a white background, you can also add this:

.entry-hero .post-thumbnail {
    background: #ffffff;
    max-height: 125px;
}
.entry-header-wrapper {
    background-image: none;
}
.entry-hero .entry-title {
    color: #000000;
}