diff --git a/demo/index.html b/demo/index.html
index d7fcc35..6fc9f39 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -45,28 +45,6 @@
     </style>
 </head>
 <body>
-<a class="card card-1" href="scientific-color.html">
-    <div class="title">Colorspace Network</div>
-</a>
-
-<a class="card card-1" href="colorspace-select.html">
-    <div class="title">Colorspace Selector</div>
-</a>
-
-<a class="card card-1" href="color-rects.html">
-    <div class="title">Color Tiles</div>
-</a>
-<a class="card card-1" href="twitter.html">
-    <div class="title">Twitter</div>
-</a>
-
-<a class="card card-1" href="./stack-overflow.html">
-    <div class="title">Stackoverflow</div>
-</a>
-
-<a class="card card-1" href="./keiko.html">
-    <div class="title">Keiko</div>
-</a>
-
+None
 </body>
 </html>
\ No newline at end of file
diff --git a/src/canvas/helper/radial-gradient.js b/src/canvas/helper/radial-gradient.js
index 8074500..95941ce 100644
--- a/src/canvas/helper/radial-gradient.js
+++ b/src/canvas/helper/radial-gradient.js
@@ -1,4 +1,3 @@
-import { hsl } from 'd3-color';
 import linearStops from '../../color/filter/linear-stops';
 
 /**
