Update static/index.html

static/index.html

@@ -12,10 +12,10 @@
             <canvas id="drawing-canvas"></canvas>
         </div>
         <div id="toolbar">
-            <input type="color" id="color-picker" value="#007400" />
+            <input type="color" id="color-picker" value="#000000" />
             <input type="range" id="size-slider" min="1" max="20" value="5" />
             <button id="clear-btn">Clear</button>
         </div>
         <script src="/script.js"></script>
     </body>
-</html>
+</html>