anchor.diff:  						<% end %>
   
   					</div>
  +					<canvas id="color_shower" width="300" height="150">
  +					</canvas>
  +					</div>
   				</div>
   			</div>
   
  
positive.code: 	<head>
    		<%= stylesheet_link_tag "materialize" %>
    		<%= javascript_include_tag 'materialize' %>
  	</head>
  
  	<body>
  		<div class = "container">
  			
  			<div class="row">
  
negative.code: 
  							<div>
  								<%= label_tag("Brightness") %>
  								<%= range_field_tag :bri, 254, in: 0..254, class: 'update', onchange:'draw();' %> <%= text_field_tag :bri, 254, class: 'update' %><br />
  							</div>
  							<div>
  								<%= label_tag("Hue") %>
  								<%= range_field_tag :hue, 65535, in: 0..65535, class: 'update', onchange:'draw();' %>  <%= text_field_tag :hue, 65535, class: 'update' %><br />
  							</div>
  							<div>
  								<%= label_tag(:sat, "Saturation:") %>
  								<%= range_field_tag :sat, 254, in: 0..254, class: 'update', onchange:'draw();' %> <%= text_field_tag :sat, 254, class: 'update'%> <br />
  							</div>
  							<div class="hubben-pic">
  								<% @lights.each_with_index do |light, i| %>
  