removed console.log and added rainbow brush name in select input

Author: vivek-30

example/index.html

@@ -48,7 +48,7 @@ <h3># Drawing Board</h3>
           <label for="draw-tool">Tool: </label>
           <select name="draw-tool" id="draw-tool" value="brush">
             <option value="brush">Brush</option>
-            <option value="gradient_brush">Gradient Brush</option>
+            <option value="rainbow_brush">Rainbow Brush</option>
             <option value="eraser">Eraser</option>
             <option value="line">Line</option>
           </select>

src/renderers/RealDrawBoard/tools/rainbow_brush.ts

@@ -34,7 +34,6 @@ export function _doStroke(
 ) {
   hue = (hue + 1) % 360;
   gradientColors = convertHSLToRGB(hue, 90, 40);
-  console.log('r,g,b => ',gradientColors);
   this._plot(coords[0], coords[1], this.brushSize, gradientColors);
   this._stroke(coords[0], coords[1], this.brushSize, gradientColors, identifier);
 }