Meet Insidious Magazine – one of the most advanced and complex, responsive magazine themes for Tumblr. It offers support for all post types, except Ask, up to 8 main categories and 4 different post layouts for each of them, 2 featured posts categories + 1 top, 1 bottom and 1 sidebar category = plenty of stuff to display at once.
But wait, there’s more…
The theme allows to change the color of all 26 sections of the page, it will show your important news in a ticker, your Twitter, Instagram, Flickr and Pinterest feeds, list of your recent posts and comments and many more.
This theme needs a small manual adjustment with the title, when user creates the post, so please be aware that this technique may cause problems with posts layout in existing blogs.