Where to Start with Ghost Themes
Now that we have gone over all the structure and how to use the Handlebars template, it is time to start creating your theme. Now, everyone's process is different, but since we suggested starting with the Casper theme, and that is what we did for all of our sites, we are going to begin there.
The first thing I do is to create a new css file. Casper comes with a screen.css file, but I create mine and keep that one mostly untouched because it is easier for me to track my changes in my own css file rather than try to find the changes I made in the one that is already provided.
Adding and Linking JS/CSS