For anyone needing fixes for fof/nightmode the following LESS will fix the blog section.
/*
* Blog Dark Mode Fixes
*/
.dark {
.FlarumBlogItem .FlarumBlog-Article .FlarumBlog-Article-Container .FlarumBlog-Article-Post {
background-color: #14191f;
}
.FlarumBlog-Article-Categories {
background-color: #14191f;
}
.BlogItemPage {
background-color: #14191f;
}
.FlarumBlogItem .FlarumBlog-Article .FlarumBlog-Article-Container .FlarumBlog-Article-Comments {
background-color: #14191f;
box-shadow: 1px 3px 9px 0px #000000;
}
.FlarumBlogItem .FlarumBlog-Article .FlarumBlog-Article-Author .FlarumBlog-Article-Author-Info {
background: #14191f;
box-shadow: 1px 3px 9px 0px #000000;
}
.BlogCategories {
background: #14191f;
box-shadow: 1px 3px 9px 0px #000000;
}
.FlarumBlogItem .FlarumBlog-Article .FlarumBlog-Article-Container .FlarumBlog-Article-Content {
background: #14191f;
box-shadow: 1px 3px 9px 0px #000000;
}
.App.BlogOverviewPage {
background: #14191f;
}
}
You can copy and past this direct into the Flarum appearance settings.
