Do you want a “modest” designed WordPress blog theme, but highly customizable? Blogside can adapt that requirements. It’s a free WordPress theme from AlxMedia specialized blogger who wants to share stories or news to the world. Moreover, it gives you all the necessary features for a blog and many interesting things like Social sharing, Sticky menu, Featured posts.
Strong customization tools, fine appearance many appealing features, these are all you need for a free WordPress blog theme. Moreover, thanks to the optimal SEO configuration, your website can be a more effective one.
Although there are some mistakes with the Customization, I think that doesn't bother you much. If you have any problem with this theme, the author is always willing to support you in the WordPress support forum.