Theme is used to change the look and feel of a blog or website, most blogging platforms provide numerous themes to get a user started.
But the mode in which these themes are being installed differs across the various platforms.

Although some platforms only restrict users to choose from the available themes on their platform, while others enable users to upload a custom or a third-party themes to add more designs and neat appearance to their blogs.
Below is a precise guide on how to change and upload theme to the three most prominent and widely used blogging platforms, that is Google blogger, .com WordPress and the self-hosted WordPress.
Continue reading at http://abuaslam.com.ng/installing-themes-to-blogs/