CSS changes for Rouge highlighting

This adds a new CSS file and adjusts existing highlighting files for the
Rouge syntax highlighting that was enabled.

docs/_sass/_code.scss

@@ -8,9 +8,9 @@ h4 code {
 }
 
 // Modify Bootstrap's styles for blocks of code
-pre {
+pre.prettyprint {
   padding: 9px 14px;
   margin-bottom: 14px;
   background-color: #f7f7f9;
   border: 1px solid #e1e1e8;
-}
+}

docs/_sass/_examples.scss

@@ -70,6 +70,7 @@
 }
 
 .s2-example + pre,
+.s2-example + figure,
 .s2-event-log + pre {
   margin: -15px -15px 15px;
   border-radius: 0;

docs/_sass/_prettify.scss

@@ -19,7 +19,6 @@
   color: #2F6F9F;
 }
 .typ, .atn, .dec, .var {
-  /*color: teal;*/
   color: #428BCA;
 }
 .pln {

docs/_sass/_syntax-highlighting.scss

@@ -0,0 +1,117 @@
+// Jekyll syntax highlighting styles adjusted to match Google Code Prettify
+
+.highlight  {
+    background: #fff;
+
+    // Text
+    .nx {
+        color: #333;
+    }
+
+    // Keywords and operators
+    .k, .o {
+        font-weight: bold;
+    }
+
+    // Attribute name
+    .na {
+        color: #428BCA;
+    }
+
+    // Strings
+    .s, .s1, .s2, .sb, .sc, .sd, .se, .sh, .si, .sx {
+        color: #C7254E;
+    }
+
+    // Literals
+    .m, .mf, mh, .mi, .mo {
+        color: #195f91;
+    }
+
+    // Parentheses
+    .p {
+        color: #93a1a1;
+    }
+
+    // Tag
+    .nt {
+        color: #2F6F9F;
+    }
+
+    // Comments
+    .c {
+        color: #999;
+        font-style: italic;
+    }
+
+    // Error
+    .err {
+        background-color: #e3d2d2;
+        color: #a61717;
+    }
+
+    // Generic error
+    .gr {
+        color: #a00;
+    }
+
+    // Container styles
+    pre {
+        border: none;
+        margin: 0;
+    }
+
+    & > pre {
+        border: 1px solid #eee;
+        padding: 0;
+        margin-bottom: 14px;
+    }
+
+    // Line numbers
+    .lineno {
+        background-color: #fbfbfb;
+        color: #bebebe;
+
+        -ms-user-select: none;
+        -moz-user-select: none;
+        -webkit-user-select: none;
+    }
+}
+
+.highlight .cm { color: #999988; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #999999; font-weight: bold } /* Comment.Preproc */
+.highlight .c1 { color: #999988; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #999999; font-weight: bold; font-style: italic } /* Comment.Special */
+.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
+.highlight .gd .x { color: #000000; background-color: #ffaaaa } /* Generic.Deleted.Specific */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gh { color: #999999 } /* Generic.Heading */
+.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
+.highlight .gi .x { color: #000000; background-color: #aaffaa } /* Generic.Inserted.Specific */
+.highlight .go { color: #888888 } /* Generic.Output */
+.highlight .gp { color: #555555 } /* Generic.Prompt */
+.highlight .gs { font-weight: bold } /* Generic.Strong */
+.highlight .gu { color: #aaaaaa } /* Generic.Subheading */
+.highlight .gt { color: #aa0000 } /* Generic.Traceback */
+.highlight .kc { font-weight: bold } /* Keyword.Constant */
+.highlight .kd { font-weight: bold } /* Keyword.Declaration */
+.highlight .kp { font-weight: bold } /* Keyword.Pseudo */
+.highlight .kr { font-weight: bold } /* Keyword.Reserved */
+.highlight .kt { color: #445588; font-weight: bold } /* Keyword.Type */
+.highlight .nb { color: #0086B3 } /* Name.Builtin */
+.highlight .nc { color: #445588; font-weight: bold } /* Name.Class */
+.highlight .no { color: #008080 } /* Name.Constant */
+.highlight .ni { color: #800080 } /* Name.Entity */
+.highlight .ne { color: #990000; font-weight: bold } /* Name.Exception */
+.highlight .nf { color: #990000; font-weight: bold } /* Name.Function */
+.highlight .nn { color: #555555 } /* Name.Namespace */
+.highlight .nv { color: #008080 } /* Name.Variable */
+.highlight .ow { font-weight: bold } /* Operator.Word */
+.highlight .w { color: #bbbbbb } /* Text.Whitespace */
+.highlight .sr { color: #009926 } /* Literal.String.Regex */
+.highlight .ss { color: #990073 } /* Literal.String.Symbol */
+.highlight .bp { color: #999999 } /* Name.Builtin.Pseudo */
+.highlight .vc { color: #008080 } /* Name.Variable.Class */
+.highlight .vg { color: #008080 } /* Name.Variable.Global */
+.highlight .vi { color: #008080 } /* Name.Variable.Instance */
+.highlight .il { color: #009999 } /* Literal.Number.Integer.Long */

docs/css/s2-docs.scss

@@ -1,5 +1,6 @@
 ---
 ---
+
 @import "result-repository";
 @import "sidenav";
 @import "hamburger";
@@ -16,4 +17,5 @@
 @import "anchorjs";
 @import "jumbotron";
 @import "prettify";
-@import "typography"
+@import "syntax-highlighting";
+@import "typography";