This is a child theme for Bootstrap3, it allows site administrators to select a Bootswatch. A Bootswatch is a sub-theme for Bootstrap based themes. This gem is meant to be used with bootstrap-sass. It gives you complete scss versions of bootswatches for use in your Rails asset pipeline, just like bootstrap-sass gives you scss version of bootstrap itself. Here's approximately how your lewesarts.co.uk file should look like. Bootswatch is a collection of free themes for Twitter Bootstrap. Check it out at lewesarts.co.uk Package Manager. Install-Package Bootswatch -Version 0.