Modulare is a free Tumblr grid theme that features a beautiful animated left sidebar in its default version. With this theme, you can choose from several header layouts, which you can use with the parallax effect. This theme gives you the option to select either a logo image or the title text. Modulare theme even supports banner ads. This theme also comes with the option to choose one to four columns for the footer layout. Not to mention, the Modulare theme even comes with the option to create a custom sidebar for each page. With this theme, you can also display your custom navigation menu on the blog.