(refactor): Abstract color out of styles

Author: bencodezen

styles/style.styl

@@ -26,7 +26,7 @@ h3 a {
 code {
   font-family: Source Code Pro, monospace;
   font-size: 0.75rem;
-  background: #fafafa;
+  background: darken($white, 2%);
   border-radius: 3px;
   padding: 3px 5px;
   line-height: 20px;