anchor.diff:                                            min="#{minPhi}", max="#{maxPhi}",
                                             step="#{stepPhi}")
           i.icon-fast-forward.c-pipeline-next.c-pipeline-animation-button
  -        i.icon-to-end-3.c-pipeline-end.c-pipeline-animation-button
  +        i.icon-to-end-1.c-pipeline-end.c-pipeline-animation-button
     if maxTheta > 0
       .c-pipeline-animation-theta
         i.icon-resize-vertical.c-pipeline-animation-icon &Theta;
  
positive.code:                                           min="#{minTime}", max="#{maxTime}",
                                            step="#{stepTime}")
          i.icon-fast-forward.c-pipeline-next.c-pipeline-animation-button
          i.icon-to-end-3.c-pipeline-end.c-pipeline-animation-button
    if maxPhi > 0
      .c-pipeline-animation-phi
        i.icon-resize-horizontal.c-pipeline-animation-icon &Phi;
  
negative.code:                                           min="#{minTheta}", max="#{maxTheta}",
                                            step="#{stepTheta}")
          i.icon-fast-forward.c-pipeline-next.c-pipeline-animation-button
          i.icon-to-end-1.c-pipeline-end.c-pipeline-animation-button
  