anchor.diff:            div.Grid-cell
               div.Feature
                 figure.Feature-figure
  -                img(class="Feature-image" src="../media/images/pupil_page/web/frame_flex.jpg")
  +                img(class="Feature-image" src="../media/images/pupil_page/web/frame_flex.jpg" title="Design")
   
   
       //- Modular & Hackable
  
positive.code:               h4 We offer dedicated email and video training and support packages. 
                h4 See support packages in the #[a(href='/store#additional-products' title='store') store]. 
                h4 We offer use licenses to commercial users.
                h4 Contact us to discuss custom licensing options.
  
  
  
negative.code:             div.Feature.u-textCenter
                h1 Technical Specifications & Performance
                h4 Eye tracking performance is determined in equal parts by the hardware and software. 
                h4 We constantly work on our algorithms and codebase, so you can expect a steady improvement and the latest features. For more details checkout our #[a(href="https://arxiv.org/abs/1405.0006" rel="noopener") technical report].
                h4 The headset is configurable with different cameras, so you can get the hardware you need: from high resolution capture at 30 hz to low latency (5.7ms) 120hz eye and world camera.
                
              div.Grid.Grid--justifyCenter.Grid--center
                ul
                  li Accuracy 0.60 degrees 
                  li Precision 0.08 degrees
                  li Latency 5.7 ms using 120hz eye and high speed world cameras
                  li Slippage compensation using 3d eye model
                  li Latency 35.6 ms using 30hz eye and 5.7 ms using high speed world cameras
  
              div.Feature.u-textCenter.u-padTop--1
                h4 Go to #[a(href='/store#additional-products' title='store') store] page to see the configurator for options, full technical specs for cameras, and sample videos.
                
  
      //- open source
      div.Site-gray-bkg
  