Add font family variable

butterfly/sass/_font.sass

@@ -17,15 +17,16 @@
 
 $weights: (ExtraLight 100) (Light 300) (Regular 400) (Medium 500) (Semibold 600) (Bold 700) (Black 900)
 
-@each $weight in $weights
-  $weight_name: nth($weight, 1)
+@if $font-family == "SourceCodePro"
+  @each $weight in $weights
+    $weight_name: nth($weight, 1)
 
-  @font-face
-    font-family: "SourceCodePro"
-    src: url("/static/fonts/SourceCodePro-#{$weight_name}.otf") format("woff")
-    font-weight: nth($weight, 2)
+    @font-face
+      font-family: "SourceCodePro"
+      src: url("/static/fonts/SourceCodePro-#{$weight_name}.otf") format("woff")
+      font-weight: nth($weight, 2)
 
 body
-  font-family: "SourceCodePro"
+  font-family: $font-family
   font-size: $font-size
   line-height: 1.2

butterfly/sass/_variables.sass

@@ -14,7 +14,8 @@
 
 /* Variables */
 
-/** Font Size
+/** Font
+$font-family: "SourceCodePro" !default
 $font-size: 1em !default
 
 /** Colors */
@@ -32,7 +33,10 @@ $reverse-transparent: $bg !default
 $colors: #2e3436, #cc0000, #4e9a06, #c4a000, #3465a4, #75507b, #06989a, #d3d7cf, #555753, #ef2929, #8ae234, #fce94f, #729fcf, #ad7fa8, #34e2e2, #eeeeec !default
 
 /** Text effects */
+
+/* The shadow is the size of the blur (in px for instance)
 $shadow: 0 !default
+/* The shadow alpha is the opacity of the shadow
 $shadow-alpha: 0 !default
 
 /** Scroll */

butterfly/static/main.css

@@ -27,12 +27,14 @@
 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
 /* GNU General Public License for more details. */
 /* Variables */
-/** Font Size */
+/** Font */
 /** Colors */
 /* Foreground */
 /* Background */
 /* 16 Colors in this orders :Black, Red, Green, Yellow, Blue, Magenta, Cyan, White, Bright Black, Bright Red, Bright Green, Bright Yellow, Bright Blue, Bright Magenta, Bright Cyan, Bright White */
 /** Text effects */
+/* The shadow is the size of the blur (in px for instance) */
+/* The shadow alpha is the opacity of the shadow */
 /** Scroll */
 /** Popup */
 /* These are all imported files */