Add solarized color palette to style guide

 <p>The canopy theme uses the 16-bit <a
 href=https://ethanschoonover.com/solarized>solarized</a> palette.</p>
 
+$ solarized_colors = {
+$   "base03": "002b36",
+$   "base02": "073642",
+$   "base01": "586e75",
+$   "base00": "657b83",
+$   "base0": "839496",
+$   "base1": "93a1a1",
+$   "base2": "eee8d5",
+$   "base3": "fdf6e3",
+$   "yellow": "b58900",
+$   "orange": "cb4b16",
+$   "red": "dc322f",
+$   "magenta": "d33682",
+$   "violet": "6c71c4",
+$   "blue": "268bd2",
+$   "cyan": "2aa198",
+$   "green": "859900",
+$ }
+
+<dl style=columns:2;list-style:none;padding:0;width:30em>
+$for color_name, color_hex in solarized_colors.items():
+    <dt style=font-family:UbuntuMonoPowerline;width:100%;>$color_name
+        <small style=font-size:.7em><code>#$color_hex</code></small></dt>
+    <dd style=background-color:#$color_hex>&nbsp;</dd>
+</dl>
+
 <h3>Forms</h3>
 
 <h4>Buttons</h4>